As of the last crawl of your website, you appear to be running vBulletin 3. One or more of the URLs found were:
http://www.daniweb.com/software-development/c/threads/242548/1063562
http://www.daniweb.com/software-development/java/threads/326935/1395062
http://www.daniweb.com/software-development/vbnet/threads/26614/134458

Google recommends that you update to the latest release. Older or unpatched software may be vulnerable to hacking or malware that can hurt your users. To download the latest release, visit the vBulletin download page. If you have already updated to the latest version of vBulletin, please disregard this message.
If you have any additional questions about why you are receiving this message, Google has provided more background information in a blog post about this subject.

Funnily enough, I haven't been running vBulletin for nearly a year (sign that Google doesn't understand my site?). Not only that, but the link to the blog post about the subject indicates that the feature has existed since 2009. So I never got the notice for the years I was running vBulletin, but 9 months after I no longer am, I get the message??

Dani AI

Generated

— this usually isn’t magic so much as “what Googlebot last saw.” Google looks for CMS/version footprints in the HTML it crawls (generator meta tags, visible “powered by” strings, scripts or directory names) and uses those signals when it sends software-version notices; vBulletin installs commonly leave identifiable text and cookie/header patterns that make detection easy. (developers.google.com)

Quick, practical checklist to diagnose the false positive:

  • Open the exact Search Console message and copy one of the flagged URLs.

  • Use the URL Inspection / “Test live URL” (or “View crawled page”) to see the exact HTML and headers Google fetched — look for a meta name="generator" or any literal “vbulletin” strings, cookie names, or old file paths.

  • Check response headers and cookies from your server/edge: for a quick look use a curl request like:

    curl -I -L https://your-site.example/flagged-path

    Compare what a browser sees with what Googlebot sees (CDN/edge servers or proxies can serve stale content). (searchengineland.com)

How to fix it (if you find vBulletin traces): remove or update leftover HTML comments/meta tags, delete or redirect old vBulletin files/pages, purge CDN/edge caches, and correct any server headers that still expose vBulletin. After cleaning, run the URL Inspection live test again and use “Request Indexing” so Google re-crawls the cleaned pages. If everything looks clean but the alert remains, it may be a delayed or mistaken notification — Google’s automated notices can lag or be noisy. (developers.google.com)

As guessed, it can feel like “spider regurgitation.” The good news is that these alerts are usually rooted in visible fingerprints and are fixable: find the footprint, remove or redirect it, purge caches, then ask Google to recheck. If re-crawl and Request Indexing don’t clear it after a few days, document the evidence (screenshots, before/after HTML) and escalate via Search Console help/forums. (seroundtable.com)

whoa, that's messed up ... stuff. Sounds like a spider regurgitation.

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