What is Blockaid?

Blockaid is a bot in the security scanners category, operated by Blockaid.

Bot name
Blockaid
Operator
Blockaid
Type
Bot
Respects robots.txt
Not confirmed
robots.txt user agent
Blockaid
Signs requests (Web Bot Auth)
No

About Blockaid

Scanning the internet to find malicious sites that scam crypto users into draining their wallets

Security scanners probe sites for vulnerabilities, certificates and exposed services. Some are research projects, some are vendors you hired. Allow your own scanners and block the rest at the WAF.

Blockaid user agent

Blockaid identifies itself with this user agent string:

  • Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36 36b1546a5700e52eb2972b3f92b314fa

Anyone can copy a user agent string. Transfon Security also checks where each request comes from, so a request that claims to be a known crawler but comes from the wrong network is treated as a fake, not as the real crawler.

How to block Blockaid in robots.txt

We have not confirmed whether Blockaid follows robots.txt. Add a rule, then check your logs to see that it stopped. robots.txt is a plain text file at the root of your domain, such as https://example.com/robots.txt.

Block Blockaid from the whole site

User-agent: Blockaid
Disallow: /

Block Blockaid from some folders

User-agent: Blockaid
Disallow: /private/
Disallow: /search

Allow Blockaid only on some folders

User-agent: Blockaid
Allow: /blog/
Disallow: /

Allow Blockaid and block other crawlers

User-agent: Blockaid
Allow: /

User-agent: *
Disallow: /

Things to know

  • Each host needs its own file. Rules on www.example.com do not apply to shop.example.com.
  • A crawler obeys only the most specific group that names it. Once you add a User-agent: Blockaid group, Blockaid ignores your User-agent: * rules, so repeat any that should still apply.
  • The user agent name is not case sensitive. We take Blockaid from Blockaid's user agent; check Blockaid's own documentation if it publishes a different robots.txt name.
  • Crawlers cache robots.txt, so changes can take up to a day to apply. Disallow stops crawling but does not remove pages already collected or indexed.

Limits of robots.txt

  1. Blockaid may not follow the rule. robots.txt is a request that nothing enforces, and we have not confirmed that Blockaid follows it. Check your logs after adding a rule.
  2. The user agent could be fake. robots.txt matches the name a request claims. Anyone can send Blockaid's user agent, and a scraper using it is not bound by Blockaid's robots.txt policy. Only checking the source network tells a real Blockaid from a fake one.

Treat robots.txt as a statement of your policy, and enforce it where requests arrive.

Who should care about Blockaid

Publishers

Allow Blockaid if it is a service you use, and keep its visits out of page views and ad requests either way.

Transfon Security for publishers

Media buyers and advertisers

Blockaid is not a person. Exclude it from campaign and conversion data so reports reflect real visitors.

Transfon Security for advertisers

E-commerce

Allow Blockaid only if it works for your store, and keep it away from cart and checkout.

Transfon Security for e-commerce

SaaS and APIs

If Blockaid is a service you use, allow it on the endpoints it needs and block it elsewhere.

Transfon Security for SaaS and APIs

Block Blockaid with Transfon Security

robots.txt is a request, not an enforcement. Transfon Security shows Blockaid by name in the Top Bots report, so you can see how often it visits and which pages it reads. Block or allow it with a User Agent rule, or slow it down with a rate limit decision rule.

Transfon Security

Control Blockaid on your site

  • See every Blockaid visit and the pages it reads
  • Spot bots that fake trusted crawler names
  • Block, allow or rate limit Blockaid with one rule
  • Works with or without robots.txt support

Frequently asked questions

What is Blockaid?

Blockaid is a bot in the security scanners category, operated by Blockaid. Scanning the internet to find malicious sites that scam crypto users into draining their wallets

Does Blockaid respect robots.txt?

We have not confirmed whether Blockaid follows robots.txt. Add a robots.txt rule, then check your logs to see that it stopped, and block it by user agent if it did not.

How do I block Blockaid?

Add "User-agent: Blockaid" followed by "Disallow: /" to the robots.txt file at the root of your site. To enforce it, block requests whose user agent contains "36b1546a5700e52eb2972b3f92b314fa" at your WAF. In Transfon Security that is one User Agent block rule.

Is robots.txt enough to block Blockaid?

No. robots.txt is voluntary, so Blockaid may not follow it, and anyone can send Blockaid's user agent, so a fake Blockaid ignores your rule. Enforce the rule where requests arrive, at your WAF, and check the source network.

Should I block Blockaid?

Security scanners probe sites for vulnerabilities, certificates and exposed services. Some are research projects, some are vendors you hired. Allow your own scanners and block the rest at the WAF.

Related bots

All security scanners · Full bot directory

See Which Bots Visit Your Site

Transfon Security identifies every bot in this directory in your traffic reports, flags fake search crawlers, and lets you allow, block or rate limit each bot.

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