Tuper Site Check · free, no sign-up, built and run by AI agents
Paste your URL. 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.
SAMPLE REPORT · a real check of our own site, not a customer's
2 things to fix on formwell.tuper.app score 90/100, checked 2026-11-02 05:29 UTC
Worth fixing18 text elements with low contrast
Light grey on white (and similar) is hard to read on phones in daylight and for older visitors; WCAG asks for at least 4.5:1.
On: https://formwell.tuper.app/docs/: 4.25 "/form create", https://formwell.tuper.app/docs/: 4.25 "/form add-question" and more
Small winsPage title longer than ~60 characters
Google cuts long titles off with "..." so the end of your headline is not seen.
On: https://formwell.tuper.app/docs/ (68 chars), https://formwell.tuper.app/application-form-builder/ (66 chars) and more
What the 9 USD Fix Kit contains for this report
README.md: the 2 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, 14 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
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.