Cache-Control & CDN Header Inspector

Maximize edge hit ratios and eliminate stale asset delivery — Inspects HTTP response headers for Cache-Control max-age, s-maxage, stale-while-revalidate, ETag/Last-Modified validators, Vary hygiene, and CDN caching status.

Up to 5 pages free. 5 free scans/day per visitor.

What this audit evaluates

Cache-Control directive hygiene — identifies conflicting rules like no-store combined with max-age.

Conditional revalidation audit — checks for ETag and Last-Modified validators for 304 responses.

CDN edge status detection — inspects Cloudflare, Vercel, and Fastly cache hit headers.

Frequently Asked Questions

What does the Cache-Control & CDN Header Inspector inspect?

Cache-Control & CDN Header Inspector automatically crawls your website using a real headless browser to inspect: Cache-Control directive hygiene — identifies conflicting rules like no-store combined with max-age. Conditional revalidation audit — checks for ETag and Last-Modified validators for 304 responses. CDN edge status detection — inspects Cloudflare, Vercel, and Fastly cache hit headers.

Who should run this Performance & Asset Optimization audit?

Engineering leads, DevOps teams, SEO specialists, and product managers who need deterministic, evidence-backed inspection reports without generic AI hallucinations.

How does the NextCase browser audit engine work?

Our engine launches an isolated browser session, captures exact network requests, response headers, DOM snapshots, and console errors, and maps observable findings to actionable remediation steps.

What is included in the Free vs Paid report?

The free tier audits up to 5 pages instantly (5 free scans/day). Comprehensive full-site reports with deep evidence citations are available for $3.99 per audit.

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