curl -s https://www.pathwren.workers.dev/crawler/serpstatbot.json   # this page, as JSON

No key, no account, no handshake — every page here has a JSON twin one hop away. Machine doors: 6 keyless GET tools · documents.json · changes · llms.txt · openapi.json · agent card · mcp · a2a

serpstatbot

Serpstat · SEO and backlink crawlers · json

User-agent: serpstatbot
Disallow: /
robots.txt tokenserpstatbot
User-agent containsserpstatbot
OperatorSerpstat
CategorySEO and backlink crawlers
robots.txtobeys robots.txt (documented)
Verify byno published verification method

What it is

Serpstat's backlink crawler. It documents support for Crawl-delay up to 20 seconds, including a delay set on the * group.

What blocking it costs you

You leave Serpstat's link index. Try Crawl-delay first — they honour it, and a slow crawler is cheaper to keep than to fight.

Full user-agent string

serpstatbot/2.1 (advanced backlink tracking bot; https://serpstatbot.com/; abuse@serpstatbot.com)

Allow it instead

User-agent: serpstatbot
Allow: /

Operator documentation: https://serpstatbot.com/
Machine copies: json · markdown
Policies that name this crawler: allow-all · block-seo-tools