DirFast

Resolve DNS records (A/AAAA/MX/TXT/NS/CNAME/SOA) for a domain, queried live against 1.1.1.1. Use when you need to verify a domain resolves, check mail routing, or inspect TXT/SPF records.

Inspect a host's TLS certificate: issuer, subject, SAN list, expiry date and days remaining. Use to catch expiring or misconfigured certificates.

Fetch a URL and report HTTP status, total latency in ms, key response headers (server, cache, content-type) and the page title. Use as a cheap liveness/uptime probe.

Audit HTTP security headers (HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy) and return a 0-100 score with the missing ones listed.

Follow a URL through its full redirect chain (up to 8 hops) and report each hop's status code and Location target. Use to detect redirect loops or http->https and www canonicalisation issues.

Extract on-page SEO signals from a URL: title, meta description, canonical, robots meta, h1 count, Open Graph tags, and word count. Use for quick SEO triage without a browser.

Fetch and parse a site's robots.txt into allow/disallow rules and declared sitemaps. Use before crawling a site to respect its policy.

Return the caller's public IP address and reverse DNS name. Use to confirm which egress IP an agent or service is presenting.

无需输入参数。

Run the full audit bundle in one call: SSL + security headers + redirect chain + HTTP head + DNS + SEO. Use when you need a complete health picture of a site rather than one signal.

Start watching a URL for changes. The server stores a snapshot, re-fetches on your interval, and reports a unified diff when the extracted text changes. Use this when you need to know if something changed since last time - an ordinary fetch cannot tell you that. Selector forms: css:#id, css:.class, css:tag, regex:PATTERN, json:$.path, or empty for whole body text.

Force an immediate re-fetch of a watch instead of waiting for its interval. Returns status, whether the content changed, and the new hash.

Get the unified diff of the most recent detected change for a watch. Use after watch_check reports changed=true, or to report what changed since you last looked.

List a watch's snapshot timeline: timestamps, content hashes, HTTP status and which snapshots were detected as changes. Use to see how often a page actually changes.

List all watches with their URL, selector, interval, last check time, check count and change count.

无需输入参数。

Delete a watch and its stored snapshots.