seelig.ai Website-Check

By Yannick Seelig

Overview

Website check for SEO, broken links and text errors. Give it a web address and it checks the page in a few seconds: title and meta description, headings, canonical and hreflang tags, structured data, image alt texts, security headers, and whether the site's robots.txt lets AI crawlers read it. For a whole site, the full check reads up to 20 pages from the sitemap, tests internal links for dead targets, finds duplicate titles and descriptions, noindex contradictions and thin pages, measures PageSpeed for mobile and desktop, and reviews the page text for spelling, translation and outdated-date errors. Every finding names the page or the rule it comes from, so you can fix it directly. Built for owners of small business websites and the people who run them, in German and English. Limits: public pages only, nothing behind a login, robots.txt is respected, at most 20 pages per check, reports are kept 90 days. It is not a security scanner.

Tools

check_page

ChatGPT

Use this when someone asks to check, test or analyse one web page or a site's home page for SEO, technical, accessibility or AI-visibility problems. Fetches the page and up to 30 links on it, respects robots.txt, takes a few seconds and keeps the result 10 minutes for repeat questions. Returns every problem found with a recommendation. Do not use it for security or vulnerability testing, pages behind a login or private networks.

get_site_check

ChatGPT

Use this after start_site_check returned a running status to get the report. Waits up to 40 seconds for a running check. If the status is still running, call it again with the same checkId. Returns every issue with up to 5 examples, PageSpeed scores and failed Lighthouse audits. Pass issue to list every place of one issue.

start_site_check

ChatGPT

Use this when someone wants a whole website checked, wants every issue by page, or asks for speed scores, broken links or spelling and translation errors across the site. Reads up to 20 pages and tests up to 30 internal links, respects robots.txt, keeps the report 90 days. A check of the same address from the last 24 hours is reused unless fresh is true. Waits up to 40 seconds and returns the full report when done. If the status is running, call get_site_check with the checkId.