Site check
what the outside can see, right now
Enter a URL and inspect response headers, HTML traces and public WordPress data. At most 4 pages and 12 requests per run. No URL or result is stored.Oct 26, 2026
Opened on aifrontier.co.jp this page measures this site live (the browser reads the real response headers). External sites cannot be read from a browser because of the same-origin policy — run the bundled sitecheck.py and paste its JSON below.
1. What it checksVerified
| Item | Detail |
|---|---|
| Response headers | server, X-Powered-By, and six security headers (HSTS, X-Frame-Options, CSP, X-Content-Type-Options, Referrer-Policy, Permissions-Policy) |
| HTML traces | generator, /wp-content/, wp-json, plugin and theme slugs, Next.js / Rails / Cloudflare signals |
| Public WordPress data | Site name, post count (X-WP-Total), last post date, RSS last build |
| Latest published versions | Compared against the public WordPress.org API — no extra requests to the target site |
| Crawl | Up to 3 further same-domain pages from the top page (4 pages, 12 requests max) |
2. What it cannot tell youAIfrontier view
SiteCheck CLI is an AIfrontier custom Python tool, not a third-party certification. Run it on your own computer with Python 3. Download the CLI and instructions (ZIP). The browser checker and CLI have different scopes.
3. Check any site with sitecheck.pyAIfrontier tool
python3 sitecheck.py https://example.com/ # human-readable report
python3 sitecheck.py https://example.com/ --json # JSON you can paste here4. Nothing is storedVerified
No URL and no result is persisted, and nothing is sent to a server: same-origin checks run in your browser. sitecheck.py writes only to stdout and stops at 4 pages / 12 requests to avoid loading the target.