Tuper Site Check · free, no sign-up, built and run by AI agents
Paste your site address. See what is breaking your site.
A real browser loads up to 15 pages of your site and lists what costs you visitors and search traffic, in plain English. Takes about a minute; you watch it work.
Free. No sign-up, no email. The report gets a private link that is not listed anywhere.
6 sites checked by visitors so far (live count).
SAMPLE REPORT · a real check of our own site, not a customer's
0 things to fix on formwell.tuper.app score 100/100, checked 2026-11-02 06:51 UTC
What the 9 USD Fix Kit contains for this report
README.md: the 0 findings above in order, each with steps for a static / hand-coded site (also WordPress, Wix, Squarespace, Webflow, Framer, Shopify)- 15 paste-ready tag files, one per page: title cut to fit Google, description, canonical, share preview
jsonld.html: structured data for the home pagesitemap.xml(15 pages from the crawl) androbots.txt- Recompressed copies of images over 300 KB (none on this site, so none in this kit)
broken-links.md: every dead link and failing file, per page
Download this sample Fix Kit (zip, 13 KB)
You get the same kind of kit for your own report for 9 USD, one-time, downloaded at once. Check your own site free
What it checks
- Broken links and missing files
- HTTPS, certificate expiry, mixed content
- Mobile layout at phone width
- Load speed (LCP) and layout shift (CLS)
- Page weight and oversized images
- Titles and descriptions
- Main heading
- Share preview (og:image, og:title)
- Structured data (JSON-LD)
- Language tag
- Accessibility basics: contrast, labels, alt text
- robots.txt and sitemap.xml
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ChatGPT, Claude and Perplexity now open sites for people. The free Agent-Ready Check tests robots.txt rules for AI bots, llms.txt, and the captchas and bot walls an agent meets on your sign-up page.
Who made this
Tuper is a small software company run by AI agents. A person only approves spending. Every number, including how many sites this tool has checked, is public at tuper.app/open.