BLEXBot user agent
Operated by WebMeUp
BLEXBot is the backlink crawler of WebMeUp, whose data feeds the SEO PowerSuite tools.
The BLEXBot bot at a glance
- BLEXBot is operated by WebMeUp and crawls web pages for a search engine index, and fetches pages to power a specific product feature.
- The robots.txt token for BLEXBot is BLEXBot.
- Blocking an SEO tool crawler has no effect on Google or Bing rankings.
- BLEXBot robots.txt support: Yes.
- Recommendation for Generative Engine Optimization (GEO): Your choice.
What is BLEXBot?
BLEXBot crawls the web to collect links for backlink reports.
Its former documentation site now redirects, so this profile relies on the open crawler-user-agents list.
Should you block BLEXBot?
Blocking BLEXBot is a business decision: it protects your content but can lower how well AI products know your brand.
| Effect on search rankings | Blocking an SEO tool crawler has no effect on Google or Bing rankings. |
|---|---|
| Effect on AI visibility | No effect on AI answers. Blocking hides your pages and backlinks from that SEO tool, including from competitors who use it, and breaks your own audits in that tool. |
| Follows robots.txt | Yes |
| Recommendation | Your choice |
How to block or allow BLEXBot
Put the robots.txt rule in the file at the root of every domain and subdomain, for example https://example.com/robots.txt. The token BLEXBot is matched case-insensitively.
robots.txt: block
# Block BLEXBot
User-agent: BLEXBot
Disallow: /robots.txt: allow
# Allow BLEXBot
User-agent: BLEXBot
Allow: /robots.txt: partial
# Keep BLEXBot out of private areas only
User-agent: BLEXBot
Disallow: /wp-admin/
Disallow: /cart/
Disallow: /checkout/
Disallow: /my-account/
Allow: /Nginx
# Nginx: return 403 to BLEXBot
if ($http_user_agent ~* "(BLEXBot)") {
return 403;
}Apache
# Apache .htaccess: return 403 to BLEXBot
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} (BLEXBot) [NC]
RewriteRule .* - [F,L]Cloudflare WAF
# Cloudflare > Security > WAF > Custom rule, action: Block
(http.user_agent contains "BLEXBot")How to verify real BLEXBot traffic
WebMeUp publishes no IP list or reverse DNS pattern for BLEXBot, so the user agent cannot be verified. Anyone can send the same string. Rate-limit unusual volume instead of trusting the name.
How to find BLEXBot in your server logs
Search the web server access log for the token. The command below counts BLEXBot requests per URL on Nginx or Apache.
grep -i "BLEXBot" access.log | awk '{print $7}' | sort | uniq -c | sort -rn | head -20For a full report per AI bot, upload the log to the AI Log File Analyzer, a free tool by Justin Hà.
BLEXBot user agent string
The full user agent WebMeUp publishes for BLEXBot. Version numbers such as Chrome/W.X.Y.Z change over time, so match the token, not the whole string.
Mozilla/5.0 (compatible; BLEXBot/1.0; +http://webmeup-crawler.com/)BLEXBot FAQ
BLEXBot identifies itself with the robots.txt token "BLEXBot". A typical request header reads: Mozilla/5.0 (compatible; BLEXBot/1.0; +http://webmeup-crawler.com/)
Yes. WebMeUp states that BLEXBot follows robots.txt rules written for the "BLEXBot" token.
Blocking an SEO tool crawler has no effect on Google or Bing rankings. No effect on AI answers. Blocking hides your pages and backlinks from that SEO tool, including from competitors who use it, and breaks your own audits in that tool.
Add two lines to the robots.txt file at the root of each domain and subdomain: "User-agent: BLEXBot" followed by "Disallow: /". The token is case-insensitive. Changes can take up to 24 hours to be picked up.
Not reliably. WebMeUp publishes no IP list or reverse DNS pattern for BLEXBot, so anyone can send the same user agent. Rate-limit unusual volume instead of trusting the name.
Search your server access log for "BLEXBot", for example with: grep -i "BLEXBot" access.log. The AI Log File Analyzer by Justin Hà counts visits per AI bot from an uploaded log file.
Sources: Public bot registry. Last reviewed by Justin Hà.
See which of these bots actually reach your website
The AI Log File Analyzer by Justin Hà counts visits from GPTBot, ClaudeBot, PerplexityBot and other AI crawlers in your server log, for free. The GEO Technical Package sets up robots.txt, llms.txt and crawler access for AI search.
