Safe Data Scrapers

BLEXBot

Operated by WebMeUp

Quick Facts

User-Agent:
BLEXBot
Category:
Data Scrapers
Operator:
WebMeUp
Safety:
Safe
Blocking Impact:
Low - No SEO ranking impact
SEO Impact Score:
2/10
Official docs:
help.seranking.com

What is BLEXBot?

BLEXBot is a crawler for WebMeUp, an SEO tool. It is often considered aggressive and of low value to webmasters.

BLEXBot is a crawler for WebMeUp, an SEO tool. It is often considered aggressive and of low value to webmasters. BLEXBot is a data aggregation crawler. Unlike search bots or AI crawlers, its purpose is typically to collect content for private datasets, price monitoring, or research. Blocking BLEXBot via robots.txt or at the server level has NO negative SEO impact. If you see excessive crawl volume from this bot in your logs, a hard block is recommended.

What happens if you block BLEXBot?

✅ **Minimal Impact** - Blocking BLEXBot has no meaningful effect on your search engine rankings or organic traffic.
Generally safe to allow; provides legitimate crawling value.

How to block BLEXBot with robots.txt

<code>User-agent: BLEXBot</code> - Matching is case-insensitive. Robots.txt is fetched from the root of each subdomain separately.

Block completely (robots.txt)
User-agent: BLEXBot Disallow: /
Allow all (robots.txt)
User-agent: BLEXBot Allow: /
Block private only (robots.txt)
User-agent: BLEXBot Disallow: /private/ Disallow: /api/ Disallow: /admin/ Allow: /
Nginx server block
# Nginx: Hard-block BLEXBot if ($http_user_agent ~* "BLEXBot") { return 403 "Bot blocked"; }
Apache .htaccess
# Apache: Hard-block BLEXBot SetEnvIfNoCase User-Agent "BLEXBot" bad_bot Order Allow,Deny Allow from all Deny from env=bad_bot
Meta robots tag
<meta name="robots" content="noindex, nofollow">
X-Robots-Tag header
X-Robots-Tag: noindex, nofollow

Is BLEXBot safe to allow?

Yes, BLEXBot is a **safe and legitimate** crawler. It is operated by WebMeUp, which publicly documents its crawler at an official URL and follows the Robots Exclusion Protocol (RFC 9309). The user-agent string BLEXBot is verifiable via reverse-DNS lookup on the crawling IP addresses. You can safely allow it unless you have a specific reason to block (e.g., AI training opt-out or SEO tool visibility).
Verify by reverse-DNS lookup: legitimate BLEXBot requests resolve to webmeup's domain.

What does BLEXBot do?

Understanding BLEXBot's purpose helps you decide whether to allow or block it.

  • Extracts content, prices, or data from websites
  • May be used for competitive intelligence
  • Often operates without explicit permission
  • Can increase server load and bandwidth usage
  • May violate terms of service or copyright

Frequently Asked Questions

What is the official user-agent string for BLEXBot?
The official user-agent string for BLEXBot is: BLEXBot. This is the exact string you must use in robots.txt, Nginx, Apache, or Cloudflare firewall rules to target this bot. User-agent matching in robots.txt is case-insensitive, but the string must be spelled correctly. You can verify that a request genuinely comes from BLEXBot by performing a reverse-DNS lookup on the source IP - legitimate bots resolve back to their operator's domain.
Is BLEXBot safe?
Yes, BLEXBot is a **safe and legitimate** crawler. It is operated by WebMeUp, which publicly documents its crawler at an official URL and follows the Robots Exclusion Protocol (RFC 9309). The user-agent string BLEXBot is verifiable via reverse-DNS lookup on the crawling IP addresses. You can safely allow it unless you have a specific reason to block (e.g., AI training opt-out or SEO tool visibility).
Will blocking BLEXBot hurt my SEO?
✅ **Minimal Impact** - Blocking BLEXBot has no meaningful effect on your search engine rankings or organic traffic.
How do I block BLEXBot in robots.txt?
Add the following lines to your /robots.txt file: 
User-agent: BLEXBot
Disallow: /
This instructs BLEXBot not to crawl any path on your site. The Disallow: / directive covers the entire domain including subfolders. To only block specific sections, replace / with the path (e.g., Disallow: /blog/). Note: robots.txt is publicly readable - any bot or human can inspect it at yourdomain.com/robots.txt.
Does BLEXBot respect robots.txt?
Yes - BLEXBot is a well-behaved bot operated by WebMeUp. It fetches and parses /robots.txt before crawling any page, following RFC 9309.
How do I verify if BLEXBot is crawling my site?
Search your web server access logs for the string BLEXBot (case-insensitive grep: grep -i "BLEXBot" /var/log/nginx/access.log). You can also check Google Search Console → Coverage → Crawl Stats for Googlebot variants. For BLEXBot specifically, filter by user-agent in your log analysis tool (GoAccess, AWStats, etc.).
What is the crawl frequency of BLEXBot?
BLEXBot crawls at a moderate rate. If you notice excessive traffic in your logs, you can add a Crawl-delay directive: 
User-agent: BLEXBot
Crawl-delay: 10
(10 second delay between requests).
Can I block BLEXBot from specific pages only?
Yes. Instead of a global Disallow: / you can restrict BLEXBot to specific paths: 
User-agent: BLEXBot
Disallow: /private/
Disallow: /staging/
Allow: /
This allows BLEXBot everywhere except the listed paths. Path matching in robots.txt uses prefix matching - Disallow: /private/ blocks /private/page.html but NOT /public/private/.
Is BLEXBot causing high server load?
If BLEXBot is generating excessive requests, you can: 1. Add Crawl-delay: 30 below the User-agent directive in robots.txt. 2. Rate-limit the user-agent via Nginx's limit_req_zone or Apache's mod_ratelimit. 3. Block it outright at Cloudflare WAF with rule: http.user_agent contains "BLEXBot". 4. Use fail2ban to auto-block IPs exceeding request thresholds.

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