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Cloudflare Troubleshooting

An evidence-driven playbook that queries the Cloudflare API to diagnose redirect loops, SSL errors, DNS problems, and origin failures instead of guessing.

Web & APIIntermediate★ 1,519⑂ 235AI score 9/10Last updated: Nov 8, 2026

What it does

  • Diagnoses ERR_TOO_MANY_REDIRECTS, SSL errors (525/526), DNS resolution failures, and 502/503/504 origin errors by inspecting the real configuration via API.
  • Gives a concrete workflow: resolve the zone ID → query related settings (SSL mode, Always Use HTTPS, Page Rules, DNS records, DNSSEC, firewall rules) → determine root cause → apply a minimal PATCH fix → re-verify.
  • Pushes external cross-checks with dig, curl, and openssl s_client rather than trusting the dashboard alone.
  • Branches to bundled reference docs for Pages custom domains/DNSSEC migration, Email Routing, SSL modes, and common issue patterns.

Who it's for

  • Web developers, infra/DevOps engineers running DNS and proxying through Cloudflare.
  • Anyone wiring a custom domain to GitHub Pages, Netlify, Vercel, or Cloudflare Pages and hitting redirect loops.
  • Teams who prefer verifiable API state over dashboard guesswork.

Usage examples

  1. "My site returns ERR_TOO_MANY_REDIRECTS" → check whether SSL mode is flexible, switch to full, purge cache only if stale redirects persist, then re-test the normal hostname.
  2. "pages.dev works but my custom domain doesn't" → separate Pages binding, registrar/nameserver identity, DNSSEC migration, and recursive cache effects.
  3. "Error 526 appears" → inspect certificate packs and validate the origin certificate with openssl to see if strict mode prerequisites are met.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/daymade/claude-code-skills/HEAD/cloudflare-troubleshooting/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on AI Skill Mart.
Copy the cloudflare-troubleshooting folder from the GitHub repo daymade/claude-code-skills into my ~/.claude/skills/cloudflare-troubleshooting/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/daymade/claude-code-skills.git && cp -r claude-code-skills/cloudflare-troubleshooting ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open your terminal.
  2. Clone the repository: git clone https://github.com/daymade/claude-code-skills.git
  3. Copy the skill folder: mkdir -p ~/.claude/skills && cp -r claude-code-skills/cloudflare-troubleshooting ~/.claude/skills/
  4. Confirm SKILL.md and the references/ directory exist under ~/.claude/skills/cloudflare-troubleshooting/.
  5. Install supporting tools: jq, dig (dnsutils), curl, and Python 3 if you want the bundled scripts.
  6. Create a scoped Cloudflare API Token in the dashboard (preferred over a Global API Key).
  7. Restart Claude Code and ask something like "Investigate my domain's redirect loop using the Cloudflare API" to trigger the skill.
  8. Review any PATCH/POST or cache-purge command before letting it run — those change live configuration.
View source on GitHub ↗License: MIT