# Pré-visualizações de URI para o Stack Exchange falharam em todas as instâncias do Discourse

**URL:** <https://meta.discourse.org/t/uri-previews-for-stack-exchange-have-failed-across-all-discourse-instances/415999>\
**Category:** Product Support\
**Tags:** onebox, embedding\
**Created:** [Outubro 28, 2026, 4:41pm UTC](https://meta.discourse.org/t/uri-previews-for-stack-exchange-have-failed-across-all-discourse-instances/415999 "2026-10-28T16:41:26Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![roke\_julian\_lockhart](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/roke_julian_lockhart/32/540179_2.png) [@roke\_julian\_lockhart](https://meta.discourse.org/u/roke_julian_lockhart)\
**Post date:** [Outubro 28, 2026, 4:41pm UTC](https://meta.discourse.org/t/uri-previews-for-stack-exchange-have-failed-across-all-discourse-instances/415999/1 "2026-10-28T16:41:26Z")

</div>

Isso se deve a algo do lado da SE? Pergunto com base em:

[https://meta.stackexchange.com/questions/420226/external-websites-have-recently-become-unable-to-generate-hyperlink-previews-for#comment1391493\_420226](https://meta.stackexchange.com/questions/420226/external-websites-have-recently-become-unable-to-generate-hyperlink-previews-for#comment1391493_420226)

> ****
>
> > [@Não é possível gerar prévia para URLs](https://meta.discourse.org/t/unable-to-generate-preview-for-urls/175758/5):
> >
> > Acabei de refazer a construção do post no OP aqui e isso foi suficiente. Então, [Refazer a construção de todos os posts que correspondem a um padrão](https://meta.discourse.org/t/rebake-all-posts-matching-a-pattern/48713) deve ajudá-lo.

---

<div class="post-metadata">

**Author:** ![Falco](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/falco/32/179432_2.png) [@Falco](https://meta.discourse.org/u/Falco)\
**Post date:** [Outubro 28, 2026, 4:43pm UTC](https://meta.discourse.org/t/uri-previews-for-stack-exchange-have-failed-across-all-discourse-instances/415999/2 "2026-10-28T16:43:30Z")

</div>

Sim, eles estão atrás do Cloudflare e agora bloqueiam todos os “bots” de acessar o site deles. Portanto, isso está funcionando como a SE quer.