01 · Operator
Who operates BLEXBot
- Company
- WebMeUp
- Type
- SEO tool crawler
- Official docs
- webmeup-crawler.com
02 · Behavior
What BLEXBot does
BLEXBot collects data on the link structure of websites. Internet marketers use this data for backlink analysis. It makes about one request every 3 seconds, or less often if robots.txt sets a crawl delay. After a robots.txt change it may need up to 10 minutes to stop.
03 · Impact
Why BLEXBot matters for your site
If you allow it
- Your backlinks appear correctly in SEO PowerSuite data
- Polite crawl rate with crawl-delay support
If you block it
- No direct traffic benefit
- Competitors can use the data to study your links
- Adds crawl load on large sites
04 · Allow
How to allow BLEXBot
robots.txt
User-agent: BLEXBot
Allow: /Cloudflare
# Security › WAF › Custom rules › Create rule
Expression: (http.user_agent contains "BLEXBot")
Action: Skip › All Super Bot Fight Mode rules
# Also check Security › Bots: "Block AI bots" can block it regardless of robots.txt.WordPress
# WordPress serves a virtual robots.txt. Edit it with your SEO plugin:
# Yoast: SEO › Tools › File editor · Rank Math: General Settings › Edit robots.txt
User-agent: BLEXBot
Allow: /nginx
# nginx serves every user agent by default.
# Make sure no rule like this blocks it:
# if ($http_user_agent ~* "BLEXBot") { return 403; }Apache
# Apache serves every user agent by default.
# Make sure .htaccess has no rule like this:
# RewriteCond %{HTTP_USER_AGENT} BLEXBot [NC]
# RewriteRule .* - [F,L]05 · Block
How to block BLEXBot
BLEXBot follows robots.txt, so one rule is enough. Use a server or CDN rule only to stop spoofed copies.
robots.txt
User-agent: BLEXBot
Disallow: /Cloudflare
# Security › WAF › Custom rules › Create rule
Expression: (http.user_agent contains "BLEXBot")
Action: BlockWordPress
# WordPress serves a virtual robots.txt. Edit it with your SEO plugin:
# Yoast: SEO › Tools › File editor · Rank Math: General Settings › Edit robots.txt
User-agent: BLEXBot
Disallow: /nginx
# In your server { } block:
if ($http_user_agent ~* "BLEXBot") {
return 403;
}Apache
# .htaccess
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} BLEXBot [NC]
RewriteRule .* - [F,L]
</IfModule>06 · User agents
User agents we see for BLEXBot
The user agent published by the operator:
Mozilla/5.0 (compatible; BLEXBot/1.0; +http://webmeup-crawler.com/)07 · Verification
Is it really BLEXBot?
BLEXBot’s operator publishes no IP ranges or hostnames, so requests cannot be verified. Treat the user agent as a claim, and watch your logs for unusual request rates.
FAQ
Questions about BLEXBot
What is BLEXBot?
BLEXBot is WebMeUp's crawler. It gathers backlink data for SEO PowerSuite Link Explorer.
Does BLEXBot respect robots.txt?
Yes. WebMeUp says it follows robots.txt and honors a crawl delay; allow up to 10 minutes for changes to take effect.
How do I verify BLEXBot?
WebMeUp recommends a reverse DNS lookup of the request IP. The hostname should belong to WebMeUp's crawler domain.
Last reviewed Oct 7, 2026