Uptime & Reachability

• Can visitors reach your site? We grade every check: PASS, FAIL, or network failure.
• Quick "ping" to see if the host is alive and how slow it feels.
• When pings are blocked, we test a real 443 connection instead.

Connection & Protocol

• Acts like a real Chrome browser with modern compression.
• Follows redirects (up to 5) and records where you land.
• Detects HTTP/1.1, 2, 3 so you know what's serving.
• Confirms the server you hit and that SSL is actually verified.

Speed & Timing

• Breaks load time into parts: DNS, connect, secure, first byte, download.
• Highlights slow server time and oversized "wait" moments.
• Sanity checks to catch impossible numbers or broken reports.

Status & Headers

• Shows the real status code (200, 301, 404, 500…).
• Identifies content type and true byte size.
• Surfaces caching; CDN hints (Age, Cache-Control, X-Cache).
• Basic server fingerprint (no cookies stored).

Page Weight & Throughput

• Total bytes downloaded and header overhead.
• Effective download speed (also shown as Mbps).
• Tracks trends and flags sudden size spikes.

Health Rules

• Network failures = FAIL_TRANSPORT.
• Bad status, slow TTFB, or broken timings = FAIL.
• Everything clean = PASS.

DNS Health

• Who serves your DNS and where they live.
• Checks zone owner settings, verify servers are in sync.
• Lists A/AAAA/CNAME targets and stability.
• Reports TTLs (answers are cached) and tiny-TTL risks.

SSL & Certificates

• Reads the certificate and chain: names, issuer, strength.
• Days until expiry and whether the hostname really matches.
• Flags self-signed or weak crypto; can verify full trust chain.
• Classifies overall risk: ok / warning / critical.

Email Reputation

• Parses SPF to find your real sending IPs.
• Checks common blacklists for your IPs and domain.
• Notes if DMARC is set up to protect your brand.

Storage & Reporting

• Saves each snapshot: status, timings, headers, errors.
• Readable console report; screenshots for evidence.
• Alerts via Email, SMS, or Webhook when things break.

Security Checks

• Watches for visual/text/code changes on key pages.
• Enforces HTTPS best-practice and safe request limits.
• Strips cookies from stored headers for privacy.

Roadmap

• Robots and sitemap basics; canonical URL sanity.
• Planned: SEO signals (rankings, indexing, backlinks).
• Planned: crawl health (errors, broken links, structure).