Two Learning Center performance pages 404 with no redirect (brotli-vs-gzip, TTFB glossary)

Aperta
  • Qualcosa non va?
#33,102 1 commento 0 reazioni 8 assegnatari Vedi su GitHub

I maintainer di solito rispondono entro 1 giorno

@smarsh-cf ci sta già lavorando.

Dal 29/8/2026.

Valutazione

Questa issue non è ancora stata valutata.

Descrizione

content:edit documentation product:reference-architecture product:rules product:speed
Existing documentation URL(s)

The two broken pages — note these are www.cloudflare.com/learning, not developers.cloudflare.com. See "Additional information" below.

Suggested redirect targets, all currently live on the developer docs:

What changes are you suggesting?

Both of these Learning Center URLs return 404 with no redirect:

  • https://www.cloudflare.com/learning/performance/brotli-vs-gzip/
  • https://www.cloudflare.com/learning/performance/glossary/time-to-first-byte-ttfb/

Neither appears in https://www.cloudflare.com/sitemap.xml, which currently lists 33 URLs under /learning/performance/. So the content looks removed rather than moved.

Both URLs are still widely linked from outside Cloudflare, and both are the kind of page someone lands on mid-investigation — "should I use Brotli or gzip" and "what counts as a good TTFB" are among the most common questions people arrive with.

Suggested fix: 301s to the live equivalents, which are all on the developer docs now. That would repair the dead links without needing the Learning Center articles rewritten.

Dead URL Suggested target
/learning/performance/brotli-vs-gzip/ https://developers.cloudflare.com/speed/optimization/content/compression/ — covers the per-plan default algorithm; https://developers.cloudflare.com/rules/compression-rules/ covers choosing the Brotli/gzip/Zstandard order
/learning/performance/glossary/time-to-first-byte-ttfb/ the "time to first byte (TTFB)" entry at https://developers.cloudflare.com/glossary/, or https://developers.cloudflare.com/speed/troubleshooting/slow-website/ for the TTFB target table

If restoring or rewriting the Learning Center articles is preferred over redirecting, that works too — the main thing is that neither URL currently resolves to anything.

Additional information

On filing this here: I couldn't find any feedback route for www.cloudflare.com/learning. Those pages carry no "Was this helpful?" control, no edit link and no report link, and the footer offers only Contact sales / Support / Report abuse / Report a security issue. I understand this repo covers developers.cloudflare.com only — if there's a better home for Learning Center content bugs, please point me at it and I'll move this. If there isn't one, that might itself be worth fixing.

Minor, while I'm here: https://www.cloudflare.com/learning/cdn/what-is-caching/ says "335+ PoPs", while https://developers.cloudflare.com/reference-architecture/architectures/cdn/ says "hundreds of cities worldwide" alongside 405 Tbps and "95% of the world's Internet-connected population within 50 ms". Not a contradiction, but the Learning Center figure is both more precise and probably staler, and the two read oddly side by side.

Lingua principale
MDX
Stelle
5.4k
Fork
17.2k
Merge medio
1g 19h
PR unite (30g)
500

Preparare l'ambiente

Come iniziare

  1. Leggi tutta la issue e poi la guida ai contributi del progetto.
  2. Commenta sulla issue per dire che te ne occupi tu — evita che due persone facciano lo stesso lavoro.
  3. Fai un fork del repository e lavora su un branch.
  4. Apri una pull request che faccia riferimento al numero della issue.

Altre issue di cloudflare/cloudflare-docs

Tutte le issue di cloudflare/cloudflare-docs

Ricevi le nuove issue nella tua casella

Un breve riepilogo di issue GitHub adatte ai principianti.