Qualys is a bot in the security scanners category, operated by Qualys.
Qualys Web Application Scanner is a cloud-based service that provides automated crawling and testing of custom web applications to identify vulnerabilities including cross-site scripting (XSS) and SQL injection.
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.
Qualys identifies itself with this user agent string:
cf-qualys-scannerAnyone 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.
We have not confirmed whether Qualys 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.
User-agent: cf-qualys-scanner Disallow: /
User-agent: cf-qualys-scanner Disallow: /private/ Disallow: /search
User-agent: cf-qualys-scanner Allow: /blog/ Disallow: /
User-agent: cf-qualys-scanner Allow: / User-agent: * Disallow: /
User-agent: cf-qualys-scanner group, Qualys ignores your User-agent: * rules, so repeat any that should still apply.cf-qualys-scanner from Qualys's user agent; check Qualys'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 Qualys if it is a service you use, and keep its visits out of page views and ad requests either way.
Transfon Security for publishersQualys is not a person. Exclude it from campaign and conversion data so reports reflect real visitors.
Transfon Security for advertisersAllow Qualys only if it works for your store, and keep it away from cart and checkout.
Transfon Security for e-commerceIf Qualys 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 Qualys 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
Qualys is a bot in the security scanners category, operated by Qualys. Qualys Web Application Scanner is a cloud-based service that provides automated crawling and testing of custom web applications to identify vulnerabilities including cross-site scripting (XSS) and SQL injection.
We have not confirmed whether Qualys 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.
Add "User-agent: cf-qualys-scanner" followed by "Disallow: /" to the robots.txt file at the root of your site. To enforce it, block requests whose user agent contains "cf-qualys-scanner" at your WAF. In Transfon Security that is one User Agent block rule.
No. robots.txt is voluntary, so Qualys may not follow it, and anyone can send Qualys's user agent, so a fake Qualys 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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