cerez.io crawler
This crawler is used by cerez.io customers to run technical SEO scans of their own sites. A scan starts only from the site owner's account, and only on sites whose ownership is verified in the cerez.io panel.
Identity
The raw HTML crawl uses this user agent:
cerez.io-seo/1.0 (+https://cerez.io/bot)
Sampling, in which a small number of selected pages are opened with JavaScript, carries HeadlessChrome and cerez.io-seo/1.0 in its user agent. robots.txt group name: cerez.io-seo
Rules
- Follows robots.txt: applies the group for its own name if there is one, otherwise the User-agent: * group. Honours Crawl-delay.
- The default rate is 1 request per second. The site owner can raise it to at most 4 requests per second on a site with verified ownership.
- If the site returns 429 or 503, has repeated server errors or responds clearly slower, the rate is halved automatically.
- Makes only GET and HEAD requests; does not submit forms or log in, and records redirects step by step.
- The number of pages per scan is limited by the site owner's plan.
Blocking
To block the crawler on your whole site, add this to your robots.txt:
User-agent: cerez.io-seo
Disallow: /
Contact
For any issue with the crawler, write to us: destek@cerez.io