Website Diagnostic Reports: turn DNS, SSL, CDN, and HTTP checks into an SRE action plan
OpsKitPro Website Check now turns raw DNS, SSL, CDN, security header, and HTTP probe data into a practical diagnostic report with likely causes and verification steps.
This page is organized as a full read-through, from background to implementation and usage.
Why a website diagnostic report matters
A website outage rarely arrives as one clean signal. A browser shows a generic error, a CDN returns a status code, DNS looks fine from one resolver and broken from another, and the certificate may be valid while the origin is still unreachable.
That is why OpsKitPro Website Check now creates a structured website diagnostic report instead of leaving you with raw probe data only.
The report is designed for SREs, DevOps engineers, and site owners who need a quick answer to three practical questions:
- What is broken or risky?
- What is the most likely cause?
- What should I check next?
What the report checks
The report is generated from the same Website Check probe that inspects your public target:
- DNS: resolved IPs, A/AAAA records, nameservers, resolver behavior, and lookup latency.
- HTTP: reachability, status code, final URL, redirects, response latency, and CDN hints.
- SSL/TLS: certificate validity, grade, issuer, expiry, and HTTPS signals.
- Security headers: HSTS, Content-Security-Policy, X-Frame-Options, nosniff, Referrer-Policy, and Permissions-Policy.
- CDN detection: provider, server header, and edge hints such as Cloudflare response metadata.
Instead of treating those sections as separate boxes, OpsKitPro turns them into prioritized findings.
From raw checks to an action plan
Each finding includes:
- severity:
critical,warning,info, orsuccess - evidence collected from the probe
- likely cause
- recommended fix
- verification steps
For example, an HTTP 522-like Cloudflare failure is not only shown as a status code. The report highlights origin connectivity as a likely cause, recommends checking origin health and CDN origin configuration, and suggests verifying the fix with public hostname and origin-level checks.
For a missing Content-Security-Policy header, the report does not overstate availability impact. It classifies the issue as a hardening warning and recommends adding the header at the application, reverse proxy, or edge layer.
When to use it
Use the report when:
- a site returns 403, 502, 522, 525, or other edge/origin errors
- a domain resolves but the website is not reachable
- a certificate looks valid but browsers still complain
- security header hardening needs a quick baseline
- you need to paste a concise diagnostic summary into an incident ticket
- you want a Markdown or JSON report for handoff
The goal is not to replace your logs or monitoring. It is to shorten the first pass of triage so you know which system to inspect first.
Export formats for incident handoff
Website Check can copy or export:
- a plain summary for tickets and chat
- a Markdown diagnostic report
- a JSON object that includes both the raw result and the structured report
The JSON report includes a stable format marker, currently website-check-report.v1, so scripts and future integrations can safely detect the report shape.
Try it
Open Website Check, enter a domain, and review the diagnostic report section after the probe completes.
For best results, test the exact hostname users visit, not only the root domain. Redirects, CDN rules, and TLS certificates can differ between example.com, www.example.com, and an application subdomain.