CertChief is a bot in the security scanners category, operated by Chief Tools.
Cert Chief is a certificate monitoring tool that periodically crawl web properties to check their configuration and reports problems and changes when they are detected.
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.
CertChief identifies itself with this user agent string:
CertChief/8714fb40 (+https://cert.chief.app)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.
CertChief follows robots.txt, so these rules stop it crawling the paths you choose. robots.txt is a plain text file at the root of your domain, such as https://example.com/robots.txt.
User-agent: CertChief Disallow: /
User-agent: CertChief Disallow: /private/ Disallow: /search
User-agent: CertChief Allow: /blog/ Disallow: /
User-agent: CertChief Allow: / User-agent: * Disallow: /
User-agent: CertChief group, CertChief ignores your User-agent: * rules, so repeat any that should still apply.CertChief from CertChief's user agent; check Chief Tools's own documentation if it publishes a different robots.txt name.Treat robots.txt as a statement of your policy, and enforce it where requests arrive.
Allow CertChief if it is a service you use, and keep its visits out of page views and ad requests either way.
Transfon Security for publishersCertChief is not a person. Exclude it from campaign and conversion data so reports reflect real visitors.
Transfon Security for advertisersAllow CertChief only if it works for your store, and keep it away from cart and checkout.
Transfon Security for e-commerceIf CertChief is a service you use, allow it on the endpoints it needs and block it elsewhere.
Transfon Security for SaaS and APIsrobots.txt is a request, not an enforcement. Transfon Security shows CertChief 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
CertChief is a bot in the security scanners category, operated by Chief Tools. Cert Chief is a certificate monitoring tool that periodically crawl web properties to check their configuration and reports problems and changes when they are detected.
Yes. CertChief follows robots.txt, so a Disallow rule for the CertChief user agent stops it from crawling the paths you list.
Add "User-agent: CertChief" followed by "Disallow: /" to the robots.txt file at the root of your site. To enforce it, block requests whose user agent contains "CertChief/" at your WAF. In Transfon Security that is one User Agent block rule.
No. robots.txt is voluntary, so CertChief may not follow it, and anyone can send CertChief's user agent, so a fake CertChief ignores your rule. Enforce the rule where requests arrive, at your WAF, and check the source network.
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.
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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