I fix WordPress migration bugs by isolating them, reproducing them consistently, diagnosing the root cause with browser tools and plugin logs, and applying a specific, tested solution that restores the site to a clean, fast, and fully functional state. I learned this during the migration of my own site from Blogger to WordPress, when I moved eighty‑two articles, four pillar pages, and five legal pages to a self‑hosted platform. The import appeared successful at first glance the content was there, the design looked acceptable, and the new URLs were live.
But beneath the surface, nineteen distinct bugs were waiting to be discovered. Each one had the potential to break links, slow the site, confuse search engines, or frustrate visitors. I spent the first week after the migration not writing new content, but systematically hunting down every issue, documenting the symptoms, identifying the root cause, and applying a permanent fix. This guide is the complete log of every bug I encountered, the exact steps I took to resolve each one, and a repeatable diagnostic framework that works for any platform migration.
1. The Hidden Cost of Changing Platforms
When I moved my site from Blogger to WordPress, I did more than transfer text. I moved an entire ecosystem of URLs, images, internal links, theme settings, and search engine signals. Every small difference between the old platform and the new one became a potential point of failure. Blogger had its own way of handling mobile URLs with a ?m=1 parameter. It had a default permalink structure that embedded dates in the URL. It stored images with different markup, and it handled internal links as absolute references to the old domain. The import process translated most of the content, but it could not account for every structural difference.
The result was that the site looked functional after the import, but a deeper inspection revealed a series of silent failures. Some links pointed to the old Blogger domain. Some images appeared twice. The navigation menu was missing. The author name displayed an email address instead of a display name. The sitemap could not be fetched by Google. The page speed had dropped. Each bug was small on its own, but together they formed a barrier between the site and the visitors it was meant to serve. I learned that a migration is not complete when the content is imported; it is complete when every system on the new platform is verified as working correctly the disciplined approach is what I apply to a self‑discipline system that keeps the entire site consistent.
2. The Dailingua Migration: Before and After
Before the migration, my site had ninety‑one published URLs on Blogger, including eighty‑two blog posts, four pillar pages, five legal pages, and an about page. Google had indexed only fourteen of those pages. The ?m=1 mobile redirect issue was creating duplicate indexed pages that I could not resolve. The page load speed was constrained by the platform’s infrastructure, and I had limited control over the URL structure.
After the migration, I had a fully self‑hosted WordPress site with a custom domain. The redirect map I had built ensured that every old URL forwarded to the correct new page. Google indexed seventy pages in a single update, up from fourteen. The page speed scores reached 97 to 100 on mobile and desktop. The permalink structure was clean, using only the post name. The site was faster, more organized, and ready to grow.
But the journey from the “before” state to the “after” state required solving every bug that stood between the import and a fully stable platform. The redirect map, the systematic bug hunting, and the rigorous testing formed the connection between the old site and the new one. I learned that a migration is a process of discovery as much as it is a process of transfer, and the patience is what I apply to understanding why early blog posts need time to gain traction.
3. The Bug Diagnostic Framework
I did not fix bugs randomly. I followed a four‑step framework that turned every issue into a solvable problem. The framework is repeatable for any migration, on any platform, and I still use it whenever something on the site behaves unexpectedly.
The first step is to isolate. I identify which area of the site is affected permalinks, content, media, layout, page speed, or search engine visibility. This narrows the search and prevents me from chasing symptoms across unrelated systems. The second step is to reproduce the bug consistently. I open the affected page in an incognito browser window, on multiple devices, and confirm that the behavior is not a caching artifact or a local machine issue.
The third step is to diagnose the root cause. I use browser developer tools to inspect the HTML and network requests, check plugin logs and error consoles, and deactivate plugins one by one to isolate conflicts. The fourth step is to fix and validate. I apply the specific fix, clear all caches, and retest the page to confirm the issue is resolved. I then document the fix so I never have to diagnose the same problem twice.
This framework became the engine that powered the entire migration recovery. Every bug in the sections that follow was resolved using this same sequence: isolate, reproduce, diagnose, fix and validate the methodical process is what I apply when structuring a long‑form guide that people can actually finish reading.
Bug 1: Permalink Structure Silently Changed
The first bug I noticed after the import was that all the new WordPress URLs still carried the old Blogger structure. The URLs looked like /YYYY/MM/sample‑post.html, complete with dates and the .html extension. I wanted clean, simple URLs that used only the post name, so I went to Settings → Permalinks and selected “Post name.” I clicked Save, refreshed the site, and immediately every post returned a 404.
The change had broken every link on the site. The old date‑based structure was no longer valid, and the new post‑name structure had not properly propagated through the rewrite rules. I went back to the Permalinks page and clicked Save Changes twice this flushes the rewrite rules and forces WordPress to regenerate the URL mappings. After the double save, the posts began to load correctly. I cleared the LiteSpeed cache to ensure no stale redirects were served, and I verified a random sample of posts using an incognito window.
The lesson is that changing permalinks after content is live can cause widespread 404s if the rewrite rules are not flushed. The double‑save method is the simplest fix, but if posts still fail to load, manually resaving the permalink setting and purging all caches resolves the issue. I also made sure that I had not yet submitted the new sitemap to Google before changing permalinks, so no incorrect URLs were indexed. If the site had already been indexed, I would have needed to rebuild the redirect map to include the old date‑based URLs pointing to the new post‑name versions.
Bug 2: Old Internal Links Still Point to Blogger URLs
After fixing the permalinks, I clicked through a few imported posts and discovered that many of the internal links still pointed to the old Blogger domain. A link in one article that was supposed to direct readers to another post on the site instead sent them to https://dailingua.blogspot.com/YYYY/MM/old‑post.html. The old Blogger site was still online at that point, so the link did not break, but it meant that every click on that link was sending traffic away from the new WordPress site and diluting the authority that should have been consolidating on the new domain.
I fixed this with a two‑step approach. First, I used a search‑and‑replace plugin to find every instance of dailingua.blogspot.com in the database and replace it with dailingua.com. This updated all the old absolute URLs to point to the new domain. Second, I manually reviewed the most important articles the pillar pages and the posts with the highest internal link counts to ensure the anchor text was still descriptive and the links were pointing to the correct new permalinks. After the replacement, I went back to Settings → Permalinks and clicked Save to flush the rewrite rules one more time.
This bug is one of the most overlooked issues in any migration. Internal links carry authority and guide readers through the site. If they point to the old domain, that authority leaks away. A bulk search‑and‑replace is the fastest fix, but manual verification of the most valuable pages ensures no context is lost.
Bug 3: Custom Pages Return 404
The four pillar pages and five legal pages were imported as drafts, but when I tried to access them through their new WordPress URLs, they returned 404 errors. The pillar pages were long‑form resource pages that served as content hubs, and the legal pages included the privacy policy, terms of service, and disclaimer. Losing them to 404s would have broken the site’s navigational structure and removed pages that were essential for both readers and search engines.
The cause was a conflict between the imported drafts and pages I had manually created before the import. The imported versions had different post IDs and did not overwrite the existing pages. The URLs I had assigned manually were conflicting with the imported slugs. I fixed this by deleting the imported page drafts entirely, then manually recreating each page using the same content from the import. I set the slug exactly as I wanted it, ensured no page slug duplicated an existing post slug, and published each page. After creation, I added every page to the navigation menu so that visitors could reach them from the main header.
This bug taught me that custom pages deserve the same level of attention as blog posts during a migration. They are often the pages that carry the most trust the privacy policy, the about page, the content hubs and a 404 on any of them signals a broken site to both visitors and search engines.
Bug 4: Duplicate Featured Image
After the import, every post displayed the featured image twice. The cover image appeared at the top of the article as intended, but the same image also appeared as the first element inside the content, creating a jarring visual duplication. It made the articles look unprofessional and pushed the actual text further down the page.
I spent several hours investigating this bug the duplicate image was not visible in the WordPress editor. It was being injected by a function that automatically prepended the featured image to the post content before rendering. This behavior was a remnant of an old Blogger‑specific snippet that had been carried over during the import, or possibly a leftover filter from a plugin I had tested. I resolved the issue by installing a lightweight plugin that adds a checkbox to each post, allowing me to hide the featured image from within the content. For each affected post, I checked the “Hide Featured Image” option, which removed the injected duplicate while keeping the cover image visible in the theme’s header area.
I later discovered an alternative fix that did not require a plugin: I simply used a different image for the featured cover than the image I placed inside the content. Choosing a distinct cover image eliminated the visual duplication without any additional tools. This approach is simpler and does not add any plugin overhead, which aligns with the principle of keeping the site lean that I discuss in how to choose a WordPress theme that keeps the site fast.
Bug 5: Images Missing Alt Text and Broken Captions
When I reviewed the imported posts, I found that many images had lost their alt text attributes. The alt text is used by screen readers to describe images and by search engines to understand the content of a page. Without it, the images were invisible to both accessibility tools and search bots. Additionally, some image captions that had been in the original Blogger posts were displayed as plain text above or below the image, separated from the visual element they were meant to describe.
I fixed this by manually editing each post where images were critical to the content. I converted the old classic image blocks into native WordPress Image blocks using the block editor, which gave me access to the alt text field and the caption settings. I added descriptive alt text to every featured image and to the most important in‑post images. For captions, I entered them into the block’s caption field so they appeared correctly styled below the image.
For bulk alt text cleanup, a plugin like Media Library Assistant can scan the media library and identify images missing alt text, but I found that manual review was the only reliable way to ensure the alt text was both present and meaningful. A description like “image of a chart” is not as helpful as “a bar chart showing the increase in indexed pages from 14 to 70 after migration.” The manual work was time‑consuming, but it improved the accessibility and the search visibility of every page.
Bug 6: Classic Editor Blocks Trapping Content
After the import, every post was contained inside a single “Classic” block in the WordPress editor. This meant that I could not edit individual paragraphs, headings, or images separately. The entire post appeared as one monolithic chunk of text. The visual editor showed formatting, but the block structure was missing, and internal links were not clickable in the editor view.
This bug was caused by the import process converting the Blogger content into a format that WordPress recognized as a classic editor post, rather than as individual blocks. To fix it, I installed the free plugin “Convert to Blocks,” developed by 10up. This plugin processes all classic blocks in the site and transforms them into the corresponding block types Paragraph blocks for text, Heading blocks for headings, Image blocks for images, and so on. I ran the bulk converter from the plugin’s settings page, and within minutes, every post was split into editable, modern blocks. After the conversion, I spot‑checked several posts to confirm that headings were properly separated from paragraphs and that no content had been lost in the transition.
This fix unlocked the full power of the WordPress block editor for every piece of content on the site. It also resolved the “No block selected” error that had been appearing when I tried to edit posts, and it made internal links functional again in the editor. The lesson of converting legacy content to a modern format applies to keeping old articles fresh through regular editing routines.
Bug 7: Internal Link Text Converted to Plain Text
Some of the older Blogger posts contained internal links with descriptive anchor text that guided readers to related articles. After the import, a few of those links had lost their hyperlink formatting entirely. The anchor text remained as plain words in the paragraph, but clicking them did nothing. The link had been stripped during the import, possibly because the target URL format was not recognized or because of a parsing error in the migration script.
I fixed this manually by locating the affected links in the converted block editor and re‑applying the hyperlink using the link toolbar. For links that were meant to point to other articles on the site, I used the internal linking suggestions provided by the SEO plugin to quickly find and link to the correct new URL. I also took the opportunity to update the anchor text where it was generic changing phrases like “click here” to something more descriptive, like “my guide to building a redirect map.” This manual pass improved both the user experience and the search engine signals for the linked pages.
This bug highlighted the importance of auditing internal links after any migration. Even if a bulk search‑and‑replace updates the domain, individual links can still be broken or stripped. A manual review of the most linked‑to pages catches the gaps that automated tools miss the principle of verifying every connection is what I apply to building a full redirect map from old URLs to new ones.
Bug 8: Homepage Post Links Not Clickable
On the new WordPress homepage, I had built a grid of recent posts using the GenerateBlocks Query Loop block. The layout looked correct, but when I hovered over the post titles, the cursor did not change to a pointer, and clicking the title did nothing. The links that were supposed to take visitors to the individual articles were not functioning.
I opened the page in the block editor and selected the headline block inside the Query Loop. In the right sidebar, under the Link Settings section, I saw that the link source was not set. The headline was displaying the post title, but it had not been told to link to the single post page. I set the link source to “Single Post,” saved the page, and cleared the cache. The links became clickable immediately. I tested the fix on mobile as well to ensure touch targets were working, and I verified that the correct article loaded when each title was tapped.
This bug was a configuration error in a block that I had placed but not fully configured. It is the kind of issue that is easy to miss during a migration because the page looks right at a glance. I learned to click every link on every important page after any design change, and to test the site on multiple devices before declaring it ready. The attention to detail is what I use when finding article titles that drive stable monthly traffic.
Bug 9: Author Name Displayed as Email
Below each post, the published date was followed by what was supposed to be the author’s name. Instead, it displayed my email address. Every article on the site showed the same string: an email that did not belong in public view. It looked unprofessional and exposed a personal address to anyone who visited the site.
The cause was in the WordPress user profile settings. The “Display name publicly as” field was set to the email address rather than a chosen display name. I went to Users → Profile in the WordPress dashboard, changed the setting to my preferred name, and saved the profile. I cleared the site cache, and the email address was replaced with the display name on every post. I verified the change by checking several articles in an incognito window to ensure the fix was consistent across the site.
This was a simple configuration oversight with a visible impact. It taught me to review every user setting after a migration, especially those that control public‑facing information. The profile settings are rarely checked during routine site maintenance, but a single wrong field can broadcast information that should remain private.
Bug 10: Navigation Menu Not Appearing
I had built a navigation menu in Appearance → Menus, adding links to the main pages, the blog index, and the key category pages. But when I viewed the site, the header was empty—the menu simply did not appear. I checked the menu settings and confirmed that the menu had been saved, but it was not being rendered on the front end.
The issue was that I had not assigned the menu to the “Primary Menu” location. In the Menu Settings panel at the bottom of the menu editor, there is a checkbox for each available menu location. I had not ticked the box for Primary Menu, so WordPress did not know where to display the menu I had created. I ticked the box, saved the menu, and refreshed the site. The navigation appeared immediately.
This bug was a result of unfamiliarity with the new platform’s menu system. On Blogger, the navigation was handled differently, and the concept of “menu locations” did not exist in the same way. I learned that after any migration, the navigation structure requires explicit verification not just that the menu exists, but that it is correctly assigned to the intended location in the theme.
Bug 11: Footer Layout Broken
The footer of the new site was divided into two widget areas: one for quick navigation links and one for legal pages. But instead of sitting side‑by‑side in two columns, the menus were stacked vertically on top of each other. The layout looked uneven, with large gaps between the menu items, and it took up far more space than intended.
I inspected the footer with the browser’s developer tools and identified that the widget containers were displaying as block‑level elements, which caused them to stack. The fix was a small piece of custom CSS. I added the following rule in Customize → Additional CSS.
css:
.footer-widget-1 .widget {
display: inline-block;
vertical-align: top;
margin-right: 40px;
}
This code changed the widget display to inline‑block, allowing them to sit next to each other horizontally, and added a margin to create space between the two columns. I saved the CSS, cleared the cache, and verified the footer on desktop and mobile. The menus appeared in two clean columns with proper spacing.
This bug taught me that small CSS adjustments can resolve layout issues without changing the theme or installing additional plugins. I now keep a collection of common CSS fixes that I can apply quickly, avoiding the overhead of complex solutions.
Bug 12: Mobile Layout Collapses
On mobile devices, the homepage looked cramped. The main container had large padding values that were designed for desktop screens, but on a phone, that padding compressed the content into a narrow strip in the center of the screen. The text was tiny, the images were squeezed, and the site was difficult to read.
I had built the page using GenerateBlocks, which provides responsive controls for every spacing setting. I edited the homepage in the block editor, selected the main container block, and opened the spacing settings. By clicking the device icons for tablet and mobile, I was able to set smaller padding values specifically for those screen sizes. I reduced the desktop padding of 60 pixels to 10 pixels on mobile, and I adjusted the content width to fill more of the available space. After saving and clearing the cache, the mobile layout became spacious and readable, with the same content now filling the screen comfortably.
This bug was a reminder that a migration often changes the theme and the underlying page builder, and responsive design does not transfer automatically. Every page must be tested on actual mobile devices, and the responsive settings must be adjusted for the new environment the principle of testing on real devices applies to ensuring a blog post reads well on every screen.
Bug 13: Post‑Import Page Speed Drop
Before the migration, the page speed scores on my old Blogger site were acceptable but not outstanding. After moving to the self‑hosted WordPress platform, I expected the scores to improve because I had chosen a fast theme and a reliable hosting provider. Instead, the mobile PageSpeed score dropped to 87, and the Largest Contentful Paint nearly doubled, going from 1.7 seconds to 3.9 seconds.
I ran the PageSpeed Insights test and examined the diagnostics. Two main issues appeared. First, the lazy loading feature was delaying the loading of the featured image, which was the Largest Contentful Paint element on most pages. Second, the CSS was loading asynchronously without a critical CSS fallback, which meant the page was rendering slowly while waiting for the full stylesheet to load. I turned off the “Load CSS Asynchronously” option in the LiteSpeed Cache plugin because I did not yet have a critical CSS setup. I also turned off “Lazy Load Images” temporarily to eliminate that delay. Later, I fine‑tuned the lazy load settings to exclude the featured image specifically, which restored the performance benefit for other images without affecting the LCP.
After these changes, the mobile score climbed back into the high 90s, and the LCP returned to under 2 seconds. The speed drop was not caused by a single factor; it was a combination of settings that had been configured for a different site and were not optimized for the new content structure. The lesson is that migrating a site requires re‑optimizing every performance setting, because the same settings can have different effects on a different platform.
Bug 14: Plugin Bloat After Installing Jetpack
During the migration, I installed Jetpack because it offered several features I thought I needed: social sharing, site stats, and downtime monitoring. After activation, the PageSpeed score dropped, and the Best Practices score fell to 73. The network request count increased, and the total page weight grew. The plugin was loading scripts and styles that I had not asked for, and each one added a small amount of overhead that accumulated into a measurable slowdown.
I reviewed the list of active Jetpack modules and disabled every one that I did not need, but the base plugin still added scripts. I decided to remove Jetpack entirely and replace its functionality with more lightweight alternatives. For social sharing, I set up a manual cross‑posting system. For site stats, I relied on Google Analytics and Search Console. The moment Jetpack was deleted, the Best Practices score returned to 100, and the page weight dropped back to its previous level.
This bug taught me to be extremely selective about the plugins I install after a migration. Every plugin carries a performance cost, and a plugin that is useful on one site may be unnecessary on another. I now evaluate each plugin by testing its impact on a staging site before installing it on the live site, using the evaluation method I describe in choosing a WordPress theme that does not slow down the site.
Bug 15: Grow Plugin Injects Tracking Scripts
I had kept the Grow plugin active because I planned to use it for future features, but even with analytics turned off, the plugin was injecting third‑party scripts into every page. These scripts created additional network requests, dropped the Best Practices score to 73, and increased the LCP slightly. The impact was smaller than Jetpack, but it was still measurable and unnecessary.
I did not want to delete Grow entirely because I intended to use it later, so I wrote a small code snippet that dequeues the heavy JavaScript files loaded by the plugin. The snippet hooks into WordPress and prevents the specific scripts from being loaded on the front end, while keeping the plugin active in the dashboard. After adding the snippet, the Best Practices score returned to normal, and the LCP improved. The cosmetic cookie warnings from PageSpeed Insights remained, but those do not affect actual performance. The snippet gave me the best of both worlds: the plugin remained available without degrading the site.
This fix taught me that sometimes the solution is not to remove a tool entirely, but to control exactly which parts of it are allowed to run the targeted approach is what I use when balancing SEO requirements with the reader experience.
Bug 16: Redirects Not Working Despite Plugin Installation
I had installed two redirect plugins the dedicated “Blogger to WordPress Redirection” plugin and the general‑purpose “Redirection” plugin but old Blogger URLs were still returning 404 errors when I tested them. The dedicated plugin depended on a custom field called blogger permalink that the import process had not created. Without that field, the plugin had no data to match old URLs to new ones. The Redirection plugin’s regex import could not handle the altered slugs because many of my article slugs had changed during the import. For example, one old slug language-tips-village-to-5-languages-my-story had become from-village-to-5-languages-my-story, and no automated pattern could account for that change.
I built the redirect map manually I extracted every old URL from the Blogger XML export, paired each one with its new WordPress permalink after manually verifying the content match, and formatted the pairs into a CSV file with two columns: source and target. I imported the CSV into the Redirection plugin under a dedicated group. All ninety‑one redirects were created in a single batch. I tested a random sample in an incognito window, and every old URL redirected with a 301 to the correct new page. The 404s disappeared.
This bug was the most critical of the entire migration because broken redirects mean broken search rankings. The manual mapping took hours, but it was the only reliable method when automated tools failed.
Bug 17: Sitemap Unfetchable
After the migration, I submitted the new XML sitemap to Google Search Console. The report came back with an error: “Couldn’t fetch” and “Something went wrong.” The sitemap loaded correctly when I visited the URL directly in a browser, but Googlebot was being blocked from accessing it. I checked the robots.txt file, and there was no disallow rule that would block the sitemap I temporarily disabled the security plugin, but the error persisted.
I contacted the hosting provider’s support team and described the issue. They investigated the server‑side firewall and found that a rule was blocking Googlebot from accessing XML files. The rule had been configured at a server level, not within the hosting control panel I had access to. They adjusted the firewall rules to allow Googlebot to fetch sitemaps, and within a few hours, Search Console was able to access the sitemap without errors.
This bug taught me that some migration issues are not caused by the site itself, but by the hosting environment. When a problem persists after checking all site‑level settings, the next step is to contact the host and ask them to investigate. Server‑side blocks are invisible from the dashboard, but they can cause significant indexing delays.
Bug 18: Search Console Shows Redirect Error From Old Mobile URLs
Google Search Console reported “Redirect error” for a number of URLs that ended with the ?m=1 parameter. These were the mobile‑specific variants that Blogger had generated. I had created individual redirects for many of them in the CSV, but a few had been missed, and Google was trying to crawl them. The error meant that Googlebot was encountering a redirect chain or a failed redirect when following those URLs.
I added a regex redirect rule in the Redirection plugin that would match any URL containing ?m=1 and strip the parameter, redirecting to the canonical new URL. The rule used the source pattern /(.*)\?m=1 and the target /$1/, with the “Regex” option enabled. This single rule handled all future mobile‑variant requests without requiring individual entries. After adding the rule, the redirect errors in Search Console cleared over the following days as Google recrawled the affected URLs.
This bug was a direct result of the old platform’s architecture. Blogger’s mobile URLs were separate pages in Google’s index, and each one had to be accounted for in the redirect map. A regex rule is the most efficient way to handle parameter‑based URL variants, and it is a technique I now apply to any migration where the old platform generates similar dynamic URLs.
Bug 19: Indexing Stuck at 14 Pages Until Bugs Were Fixed
In the first weeks after the migration, Google had indexed only fourteen pages the same number that had been indexed on the old Blogger site. The new content was live, the sitemap was submitted, and the redirects were working, but the index count was not increasing. I checked the Index Coverage report in Search Console and found no crawl errors, but many pages were listed as “Crawled – currently not indexed.” This status means Google had visited the pages but decided not to include them in the search index.
The issue was not a single bug but the cumulative effect of the other problems I had been fixing. Duplicate featured images made the content look thin. Missing alt text and broken captions reduced the page quality signals. Slow page speed made the site less attractive for indexing. The unfetchable sitemap had delayed the initial crawl. Each of these issues, on its own, might not have blocked indexing, but together they created a site that Google viewed as low quality.
Once I had resolved all the bugs the clean permalinks, the functional redirects, the fast page speed, the fixed sitemap, the restored images, and the corrected internal links I resubmitted the sitemap and requested indexing for the key pages. Within a single update, the indexed count jumped from fourteen to seventy. The jump from fourteen to seventy indexed pages was the moment I knew the work had been worth it. The cumulative fix was the trigger for Google to re‑evaluate the site and recognize it as a high‑quality destination.
This bug taught me that indexing is not a single‑factor problem. It is the sum of every signal the site sends to search engines. A migration that leaves any signal broken will see its indexing stall the cumulative effect is what I consider when evaluating whether a blog post is a genuine resource or just another page.
Post‑Launch Maintenance The One‑Week Bug‑Hunting Routine
After the initial migration and the first round of fixes, I established a daily routine for the first week to catch any remaining bugs. I checked the Redirection plugin’s 404 log every day, adding redirects for any missed old URLs. I monitored the Search Console Index Coverage report for new errors, especially “Page with redirect” and “Crawled – currently not indexed” statuses. I ran PageSpeed Insights on the homepage and key articles to ensure that performance remained stable after any plugin changes or content additions. I also used a temporary broken link checker to scan the site for internal links that still pointed to old URLs, then deleted the plugin once the scan was complete.
This routine took less than thirty minutes each day, but it caught three additional redirects and one broken internal link that I had missed during the manual audit. The daily checks gave me confidence that the site was stable and that no new bugs were appearing as Google crawled more pages. After the first week, the frequency of new issues dropped to near zero, and I shifted to a monthly maintenance schedule.
The one‑week bug‑hunting routine is now a permanent part of my migration checklist. It is the safety net that catches the issues that are invisible during the initial setup but surface once the site is live and receiving traffic the consistent discipline is what I use in a daily routine that keeps blogging feeling normal and productive.
A Single Checklist for the Next Migration
Every lesson from the Dailingua migration has been condensed into a single checklist that I follow for any future platform move. The checklist is:
1. Export all old URLs and build the redirect map before changing DNS.
2. Import the content, then convert all Classic blocks to native blocks.
3. Set the permalink structure to “Post name” and flush rewrite rules.
4. Disable or delete unused plugins; keep the plugin stack as lean as possible.
5. Fix featured image duplication by using a different cover image or the conditional display plugin.
6. Set up the LCP preload snippet for single post featured images to optimize speed.
7. Verify the sitemap is fetchable in Search Console and submit it.
8. Test a random sample of old URLs in incognito to confirm 301 redirects.
9. Monitor the 404 log daily for the first week and add any missing redirects.
10. Apply to any ad network or performance monitoring service only after Core Web Vitals are fully green.
This checklist transforms a complex, error‑prone process into a repeatable sequence. It ensures that no bug from this case study will recur in a future migration because the preventative steps are built into the plan. The checklist is the kind of tool I use when planning and executing long‑term site projects without burning out.
The Bug‑Fix Priority Matrix
Not all bugs demand the same urgency. After the migration, I had limited time each day to work on fixes, and I needed to allocate that time to the issues that would have the greatest impact. I developed a simple priority framework that I still use whenever I encounter multiple technical problems. The framework ranks bugs into three tiers: critical, high, and medium, based on their effect on search visibility, user experience, and site stability.
Critical Priority: Fix Immediately
These bugs directly prevent search engines from indexing the site or break the experience for every visitor. At the top of the list is the redirect map failure (Bug 16) if old URLs return 404s, search rankings evaporate. The sitemap being unfetchable (Bug 17) is equally critical because Google cannot discover the new URLs. The permalink structure causing widespread 404s (Bug 1) is critical for the same reason. I fixed these three bugs first, within the initial hours after the migration, because every hour they remained broken was an hour of lost search visibility.
High Priority: Fix Within the First Day
These bugs degrade the user experience significantly but do not block indexing. The duplicate featured image (Bug 4) makes every article look unprofessional and pushes content down the page. The classic editor blocks trapping content (Bug 6) prevents me from editing articles. The internal links pointing to the old domain (Bug 2) leak authority and send visitors to the wrong site. The navigation menu not appearing (Bug 10) makes the site impossible to navigate. I addressed these on the first day after the critical fixes were confirmed.
Medium Priority: Fix Within the First Week
These bugs affect specific elements or devices but do not break core functionality. The missing alt text (Bug 5) impacts accessibility and SEO but can be fixed incrementally. The footer layout and mobile padding issues (Bugs 11 and 12) are visual annoyances that can be corrected with CSS. The plugin bloat and tracking scripts (Bugs 14 and 15) affect speed but do not prevent the site from loading. I scheduled these for the first week, working through them one by one during dedicated maintenance sessions.
The priority matrix turned an overwhelming list into a manageable sequence. When I looked at nineteen bugs, I did not see chaos. I saw a clear order of operations: critical first, then high, then medium. That order gave me the confidence to start fixing without feeling buried the principle of triage is what I apply to recovering search traffic after a platform migration the most impactful fixes come first, and the rest follow.
The Cumulative Lesson of Nineteen Bugs
The Dailingua migration from Blogger to WordPress was not a single‑click operation. It was a series of nineteen distinct failures, each with its own symptoms, root cause, and specific fix. The permalink structure had to be changed and the rewrite rules flushed. The internal links had to be updated from the old domain to the new one. The custom pages had to be recreated to resolve 404 errors. The duplicate featured images were fixed by hiding the injected copy or using a different cover image. The missing alt text and broken captions were corrected manually. The classic editor blocks were converted to native blocks.
The homepage post links were made clickable by setting the correct link source. The author name was changed from an email to a display name. The navigation menu was assigned to the correct location. The footer layout was fixed with a small CSS rule. The mobile padding was adjusted with responsive controls. The page speed drop was reversed by disabling asynchronous CSS loading and fine‑tuning lazy load settings. The plugin bloat was eliminated by removing Jetpack and replacing its functionality. The Grow plugin’s tracking scripts were dequeued with a code snippet. The broken redirects were fixed by building a manual CSV map and importing it. The sitemap became fetchable after the hosting provider adjusted the server firewall. The ?m=1 mobile URL redirect errors were resolved with a regex rule. The indexing stall broke when all the cumulative fixes were applied.
Every bug was an opportunity to understand the new platform more deeply. Each fix taught me something about how WordPress handles permalinks, blocks, images, performance, and search signals. The migration became a training ground, and the knowledge I gained during that week of bug hunting has made every subsequent site change faster and far more confident.
The site that emerged from the migration is faster, better indexed, and built on a foundation that can grow for years. The same principle of turning problems into learning opportunities is what I apply to every challenge the site faces.
The Migration Mindset I Carry Forward
The nineteen bugs I fixed during the Dailingua migration taught me that a platform move is not a transfer of content; it is a rebuild of the site’s entire technical foundation every system URLs, images, links, speed, search signals must be re‑verified in the new environment. The import is only the first step. The real work begins when the site is live and the bugs start to surface.
I now approach every migration with the Bug Diagnostic Framework: isolate, reproduce, diagnose, fix and validate. I use the one‑week bug‑hunting routine to catch the issues that are invisible during setup. I keep the checklist as a permanent reference so that no lesson is forgotten. And I treat each bug not as a frustration but as a piece of knowledge that makes the site stronger.
A migration is not a crisis to survive it is a process to master. The site you are reading now, dailingua.com, is the product of that process. Every link works. Every image has alt text. The pages load in under two seconds. Google has indexed the content. The foundation is solid, and the nineteen bugs are not a record of failure they are a record of everything I learned to make the site what it is today. This guide is my permanent record of that week of bug hunting, and I hope it serves as a reference that saves you the hours of diagnosis I had to do myself, and gives you the confidence that every bug has a fix and every fix makes the site permanently stronger.