BLEXBot Scraper
Operated by WebMeUp
Quick Facts
- User-Agent:
- BLEXBot
- Category:
- Scrapers
- Operator:
- WebMeUp
- Safety:
- Safe
- Blocking Impact:
- Low - No SEO ranking impact
- SEO Impact Score:
- 2/10
- Official docs:
- None published by WebMeUp
- Named by:
- Cloudflare Radar verified bots
Reported, not operator documented
WebMeUp has not published a crawler page that names BLEXBot. It is listed here because an independent primary source does: Cloudflare Radar verified bots. Cloudflare's verified-bot registry lists BLEXBot under operator WebMeUp (SEO PowerSuite backlink index) with the user-agent Mozilla/5.0 (compatible; BLEXBot/1.0; +http://webmeup-crawler.com/). WebMeUp's own site does not print the token.
What that means for you: the BLEXBot rule on this page is the best available spelling, but WebMeUp has made no statement of purpose, crawl rate or robots.txt compliance. Treat a BLEXBot request in your logs as a clue, not proof of who sent it, and add a firewall rule if that traffic matters to you. If the operator publishes documentation, this profile moves to Official docs.
What is BLEXBot Scraper?
BLEXBot Scraper is a developer-facing extraction agent operated by WebMeUp. It fetches and structures web content on behalf of applications and AI agents built on WebMeUp's platform. Traffic volume depends on how third-party developers configure it, so monitor your logs if you see heavy activity.
BLEXBot Scraper is a developer-facing extraction agent operated by WebMeUp. It fetches and structures web content on behalf of applications and AI agents built on WebMeUp's platform. Traffic volume depends on how third-party developers configure it, so monitor your logs if you see heavy activity.
BLEXBot Scraper uses the user-agent token BLEXBot. You can control it via robots.txt, meta tags (noai), or the emerging llms.txt standard. Robots.txt is voluntary; for hard enforcement, combine it with server-level IP blocking.
What happens if you block BLEXBot Scraper?
User-agent / Disallow: / without any SEO penalty.How to block BLEXBot Scraper with robots.txt
<code>User-agent: BLEXBot</code> - Matching is case-insensitive. Robots.txt is fetched from the root of each subdomain separately.
Is BLEXBot Scraper safe to allow?
What does BLEXBot Scraper do?
Understanding BLEXBot Scraper's purpose helps you decide whether to allow or block it.
- Extracts and structures web content for developer applications
- Powers AI agents built on the operator platform
- Volume depends on third-party developer configuration
- Monitor logs if you notice heavy activity
- Can be rate-limited via robots.txt or server rules
BLEXBot Scraper in context
BLEXBot Scraper is a utility crawler operated by WebMeUp. In plain terms, it harvests pages for a dataset or data product. Our database files it under data scrapers and ranks it Tier 6, the lowest priority: scrapers and tools that offer most sites little or nothing. 37 of the 39 data scrapers in our database share this tier.
Its safety rating is safe and its blocking impact is low. So the decision about BLEXBot Scraper rests on what you want from WebMeUp, not on its behaviour. How we rate safety and impact.
How site owners treat BLEXBot Scraper
In our own scan of the Tranco top 10,000 (5,583 valid robots.txt files), 197 files (3.5%) name BLEXBot in a User-agent line. That shows site owners treat the token as a real crawler worth a rule. It does not, on its own, prove who operates it.
Does it follow robots.txt?
BLEXBot Scraper's operator does not clearly document how it treats robots.txt. Write the BLEXBot Scraper rule anyway, then confirm in your logs that its requests stop.
WebMeUp crawlers and close alternatives
WebMeUp runs only this one crawler in our database, so a single User-agent: BLEXBot group controls everything WebMeUp fetches through it.
Other data scrapers that do the same job (harvests pages for a dataset or data product) include Amazon Kendra from Amazon, ApifyBot from Apify, Barkrowler from Babbar, coccocbot-web from Unknown, Crawl4AI from Unknown, crawler4j from Unknown. Deciding about BLEXBot Scraper is usually a decision about the whole group, so check how your file treats these too.
We first recorded BLEXBot on March 17, 2026. We could not find a page where WebMeUp names it, so treat the token as reported rather than documented.
Which rule BLEXBot Scraper actually follows
BLEXBot Scraper reads exactly one group in robots.txt, the most specific one that names BLEXBot, and never combines rules across groups. This short file shows the trap:
User-agent: *
Disallow: /private/
User-agent: BLEXBot
Disallow: /drafts/- Find the group. BLEXBot Scraper looks for a group naming
BLEXBot. One exists, so it ignoresUser-agent: *completely. - Apply only that group. It is refused
/drafts/and nothing else. - The surprise.
/private/is open to BLEXBot Scraper, because that rule lives in the*group it no longer reads. To keep it out of both, repeatDisallow: /private/inside its own group.
Test yourself: does a rule under User-agent: * apply to BLEXBot Scraper if the file also has a User-agent: BLEXBot group?
No. Once a group names it, BLEXBot Scraper reads only that group. Put every rule you want it to follow inside its own group.
Test yourself: will blocking BLEXBot Scraper remove your pages from AI answers?
Often, yes. BLEXBot Scraper is a utility crawler, so pages it cannot fetch can drop out of the answers or results it supports.
Related: how AI engines choose their sources
Test yourself: is User-agent: blexbot the same as User-agent: BLEXBot?
Yes. RFC 9309 makes user-agent matching case-insensitive. Paths are a different story: Disallow: /Blog/ does not block /blog/.
Should you allow BLEXBot Scraper? Decide by situation
| If you are... | Recommended setting |
|---|---|
| You publish content and want AI answers to cite it | Low stakes either way. It does not decide whether AI answers cite you. |
| You license content and want to stop AI training | Blocking it does not stop training, because BLEXBot Scraper is a utility crawler. Block the operator's training crawler instead. |
| You run an online shop | Consider blocking it, especially on price and stock pages that competitors scrape. |
| Your server is under load from bots | Rate-limit before blocking. It is rated safe in our database. |
Check BLEXBot Scraper on your own site
- Open
/robots.txton your domain and search forBLEXBot. If it is not named, it followsUser-agent: *. - List the
Disallowlines in the group BLEXBot Scraper follows and test your key URLs against them; the longest match wins, andAllowwins a tie. - Look beyond the file. A firewall or bot manager can refuse BLEXBot Scraper even when robots.txt allows it, and that never shows in the file.
- Run our AI bot checker to see how BLEXBot Scraper and every other crawler we track are treated in one pass, including firewall refusals.
Common mistakes with BLEXBot Scraper
The errors we see most often with BLEXBot Scraper in the files and firewalls we test:
- Treating BLEXBot Scraper as an AI or search crawler. Blocking it has little effect on visibility; decide based on load and what it does with your data.
- Relying on robots.txt alone when BLEXBot Scraper is rated caution or aggressive. Back the rule with a server-side block.
- Blocking BLEXBot Scraper by IP alone. Ranges change; match the token and verify with logs.
All three hide inside a file that looks correct, so check BLEXBot Scraper from outside after every change.
Spotting BLEXBot Scraper in your logs
robots.txt says what BLEXBot Scraper may do; your access logs show what it actually did.
Count requests
On a server with standard Nginx or Apache logs, this counts matching requests per day (adjust the log path for your host):
grep -iE "BLEXBot" /var/log/nginx/access.log \
| awk '{print $4}' | cut -d: -f1 | sort | uniq -cAnd this shows which paths it requested most, which is the quickest way to see whether your Disallow lines are being respected:
grep -iE "BLEXBot" /var/log/nginx/access.log \
| awk '{print $7}' | sort | uniq -c | sort -rn | head -20Check the requests are genuine
Anyone can send the BLEXBot Scraper user-agent, so confirm the source before acting on a match:
BLEXBot: we hold no published IP list, so use reverse DNS where the operator documents a hostname and treat an unverifiable BLEXBot Scraper request with caution.
Frequently Asked Questions
What user-agent string does BLEXBot Scraper use?
BLEXBot. Evidence that the spelling is in real use comes from Cloudflare Radar verified bots, not from WebMeUp, which has not published crawler documentation naming it. Use it in robots.txt as the best available match, and treat a request carrying it as a clue rather than proof of who sent it.Is BLEXBot Scraper safe?
Will blocking BLEXBot Scraper hurt my SEO?
User-agent / Disallow: / without any SEO penalty.How do I block BLEXBot Scraper in robots.txt?
/robots.txt file:User-agent: BLEXBot Disallow: /
This instructs BLEXBot Scraper not to crawl any path on your site. To block only specific sections, replace / with the path (e.g.,
Disallow: /blog/).Does BLEXBot Scraper respect robots.txt?
BLEXBot will stop a client that chooses to honour it; for enforcement, add a firewall or CDN rule as well.How do I verify if BLEXBot Scraper is crawling my site?
BLEXBot (for example grep -i "BLEXBot" /var/log/nginx/access.log). Because the operator publishes no IP ranges or reverse-DNS pattern, a match shows that something used the name, not that WebMeUp sent it.