# \#cdn **URL:** https://meta.discourse.org/tag/cdn/46.md [Latest](https://meta.discourse.org/latest.md) · [Categories](https://meta.discourse.org/categories.md) · [Tags](https://meta.discourse.org/tags.md) --- ## [Configure an S3 compatible object storage provider for uploads](https://meta.discourse.org/t/configure-an-s3-compatible-object-storage-provider-for-uploads/148916)
**Author:** [@Discourse](https://meta.discourse.org/u/Discourse)\ **Replies:** 267\ **Last updated:** [September 15, 2026, 1:04am UTC](https://meta.discourse.org/t/configure-an-s3-compatible-object-storage-provider-for-uploads/148916 "2026-09-15T01:04:57Z")
:information\_source: This topic covers how to configure some common S3 compatible Object Storage providers (S3 clones). See Set up file and image uploads to S3 for more details about Amazon AWS S3 configuration, whic… --- ## [Custom Emojis loaded from S3/R2 bypass CDN routing](https://meta.discourse.org/t/custom-emojis-loaded-from-s3-r2-bypass-cdn-routing/406384)
**Author:** [@Lilly](https://meta.discourse.org/u/Lilly)\ **Replies:** 11\ **Last updated:** [July 2, 2026, 2:29am UTC](https://meta.discourse.org/t/custom-emojis-loaded-from-s3-r2-bypass-cdn-routing/406384 "2026-07-02T02:29:48Z")
Overview when using S3 or cloudflare R2 for uploads alongside a custom CDN URL, custom emoji uploads do not respect the CDN configuration and attempt to load directly from the raw bucket URL. The issue when an admin upl… --- ## [Chat thumbnails bypass s3\_cdn\_url & use raw S3 bucket URLs](https://meta.discourse.org/t/chat-thumbnails-bypass-s3-cdn-url-use-raw-s3-bucket-urls/404174)
**Author:** [@Lilly](https://meta.discourse.org/u/Lilly)\ **Replies:** 6\ **Last updated:** [June 19, 2026, 2:33pm UTC](https://meta.discourse.org/t/chat-thumbnails-bypass-s3-cdn-url-use-raw-s3-bucket-urls/404174 "2026-06-19T14:33:35Z")
i did a recent Cloudflare R2 uploads bucket configuration and my chat thumbnail images were borked. so i did some digging and made a quick fix for my configuration, then found this topic: Cloudflare R2 Image URL Display… --- ## [All plugins not functioning due to CORS error after recent upgrade](https://meta.discourse.org/t/all-plugins-not-functioning-due-to-cors-error-after-recent-upgrade/399466)
**Author:** [@TomoftheFog](https://meta.discourse.org/u/TomoftheFog)\ **Replies:** 22\ **Last updated:** [April 10, 2026, 7:20am UTC](https://meta.discourse.org/t/all-plugins-not-functioning-due-to-cors-error-after-recent-upgrade/399466 "2026-04-10T07:20:18Z")
Since last week, all plugins both core and installed have stopped functioning even when enabled on our forum. Initially I thought this was something to do with the previously mentioned bug FIX: Compile missing rollup plu… --- ## [Discourse CDN with an invalid SSL cert?](https://meta.discourse.org/t/discourse-cdn-with-an-invalid-ssl-cert/399543)
**Author:** [@jordanjay29](https://meta.discourse.org/u/jordanjay29)\ **Replies:** 2\ **Last updated:** [March 30, 2026, 3:59pm UTC](https://meta.discourse.org/t/discourse-cdn-with-an-invalid-ssl-cert/399543 "2026-03-30T15:59:24Z")
https://discourse-cdn-sjc1.com Apparently this is is down according to Cloudflare due to an invalid SSL certificate. I was alerted by a friend trying to load a Discourse-managed site and we finally found the Discourse C… --- ## [Enable a CDN for your Discourse](https://meta.discourse.org/t/enable-a-cdn-for-your-discourse/14857)
**Author:** [@Discourse](https://meta.discourse.org/u/Discourse)\ **Replies:** 72\ **Last updated:** [October 4, 2025, 12:09pm UTC](https://meta.discourse.org/t/enable-a-cdn-for-your-discourse/14857 "2025-10-04T12:09:57Z")
So you’d like to use a CDN to speed up worldwide access to common assets on your Discourse forum? You might want to go all-in and Set up file and image uploads to S3 (see also Configure an S3 compatible object storage pr… --- ## [Full site CDN acceleration for Discourse](https://meta.discourse.org/t/full-site-cdn-acceleration-for-discourse/21467)
**Author:** [@Discourse](https://meta.discourse.org/u/Discourse)\ **Replies:** 45\ **Last updated:** [August 22, 2025, 12:39pm UTC](https://meta.discourse.org/t/full-site-cdn-acceleration-for-discourse/21467 "2025-08-22T12:39:03Z")
Fastly , CloudFlare and a few other CDNs offer a mode where they accelerate dynamic content. In a nutshell you point your domain IP address at the CDN and the CDN will intelligently decide how to deal with the request. … --- ## [Allow Embedded Video from Bunny CDN stream service](https://meta.discourse.org/t/allow-embedded-video-from-bunny-cdn-stream-service/398491)
**Author:** [@Timelord](https://meta.discourse.org/u/Timelord)\ **Replies:** 1\ **Last updated:** [March 16, 2026, 9:26pm UTC](https://meta.discourse.org/t/allow-embedded-video-from-bunny-cdn-stream-service/398491 "2026-03-16T21:26:59Z")
Hey gang. I am looking to embed some videos from Bunny CDN stream service. When I attempt to embed via the URL, I get a generic link, and the video is not embedded. Any thoughts on what I should be doing? --- ## [Configuring AWS's Amazon S3 for storage and Cloudfront for CDNs](https://meta.discourse.org/t/configuring-awss-amazon-s3-for-storage-and-cloudfront-for-cdns/392369)
**Author:** [@philh](https://meta.discourse.org/u/philh)\ **Replies:** 2\ **Last updated:** [January 13, 2026, 5:22pm UTC](https://meta.discourse.org/t/configuring-awss-amazon-s3-for-storage-and-cloudfront-for-cdns/392369 "2026-01-13T17:22:50Z")
Getting Started You will need: A Discourse instance with app.yml access AWS account Naming Strategy There are many places to make mistakes. Using a naming convention strategy that makes sense to you and perhaps others… --- ## [Issues with AWS CDN and S3](https://meta.discourse.org/t/issues-with-aws-cdn-and-s3/391132)
**Author:** [@philh](https://meta.discourse.org/u/philh)\ **Replies:** 22\ **Last updated:** [December 30, 2025, 4:20am UTC](https://meta.discourse.org/t/issues-with-aws-cdn-and-s3/391132 "2025-12-30T04:20:27Z")
@Falco I this still the case? I thought I read something about recent issues using AWS but I can’t find the topic again. I am having numerous using AWS S3 using the various relevant topics as guides. Backups are worki… --- ## [Off-site backup when using S3 CDN for uploads](https://meta.discourse.org/t/off-site-backup-when-using-s3-cdn-for-uploads/391736)
**Author:** [@Overgrow](https://meta.discourse.org/u/Overgrow)\ **Replies:** 5\ **Last updated:** [December 19, 2025, 2:52pm UTC](https://meta.discourse.org/t/off-site-backup-when-using-s3-cdn-for-uploads/391736 "2025-12-19T14:52:51Z")
For those using S3 CDN for uploads, what methods do you employ to maintain an off-site backup of your files besides relying on the CDN alone? I’m interested in hearing about your backup strategies and any alternative sol… --- ## [Forum stuck on “Loading…”](https://meta.discourse.org/t/forum-stuck-on-loading/389904)
**Author:** [@bohdan](https://meta.discourse.org/u/bohdan)\ **Replies:** 5\ **Last updated:** [November 28, 2025, 5:20pm UTC](https://meta.discourse.org/t/forum-stuck-on-loading/389904 "2025-11-28T17:20:28Z")
’m experiencing an issue where some users get stuck on the “Loading…” screen when accessing my Discourse forum. I suspect the problem is related to incorrect CDN configuration while using S3 + CDN for uploads. Static ass… --- ## [Rebuilding App - Weird Error](https://meta.discourse.org/t/rebuilding-app-weird-error/358439)
**Author:** [@LotusJeff](https://meta.discourse.org/u/LotusJeff)\ **Replies:** 7\ **Last updated:** [August 2, 2025, 5:23pm UTC](https://meta.discourse.org/t/rebuilding-app-weird-error/358439 "2025-08-02T17:23:58Z")
I was performing my monthly maintenance and updates to Discourse and noticed the following errors during rebuild: I, \[2025-03-22T15:54:02.806441 #1\] INFO -- : \> cd /var/www/discourse && sudo -E -u discourse bundle exec… --- ## [Although the entire site has CDN enabled, Nginx still leaks the origin IP after enabling SSL, how to solve it?](https://meta.discourse.org/t/cdn-ssl-nginx-ip/376043)
**Author:** [@Denny\_Lu](https://meta.discourse.org/u/Denny_Lu)\ **Replies:** 1\ **Last updated:** [July 28, 2025, 2:52am UTC](https://meta.discourse.org/t/cdn-ssl-nginx-ip/376043 "2025-07-28T02:52:24Z")
Although the entire site has enabled CDN, NGINX still leaked the origin server IP after enabling SSL. How to solve it? --- ## [S3 CDN URL w/ bucket name? - MinIO](https://meta.discourse.org/t/s3-cdn-url-w-bucket-name-minio/338667)
**Author:** [@keithkhl](https://meta.discourse.org/u/keithkhl)\ **Replies:** 3\ **Last updated:** [November 27, 2024, 8:24am UTC](https://meta.discourse.org/t/s3-cdn-url-w-bucket-name-minio/338667 "2024-11-27T08:24:05Z")
I am running a MinIO multi-server instance behind an Nginx proxy server. For the MinIO integration, I have had trouble integrating, and today I found that I have to set ‘S3 CDN URL’ not as ‘cdn.example.com’, but as ‘cdn… --- ## [How to add AWS Cloudfront as a Discourse CDN](https://meta.discourse.org/t/how-to-add-aws-cloudfront-as-a-discourse-cdn/338115)
**Author:** [@jimmy0017](https://meta.discourse.org/u/jimmy0017)\ **Replies:** 6\ **Last updated:** [November 25, 2024, 1:36pm UTC](https://meta.discourse.org/t/how-to-add-aws-cloudfront-as-a-discourse-cdn/338115 "2024-11-25T13:36:33Z")
We’ve moved the objects (such as image, and others) to AWS S3. Those have been great. Now we want to speed up the site a bit more. How should I add the AWS cloudfront as the DISCOURSE\_CDN? I tried to setup myself. It w… --- ## [Forum stuck on ‘loading’](https://meta.discourse.org/t/forum-stuck-on-loading/308075)
**Author:** [@Master](https://meta.discourse.org/u/Master)\ **Replies:** 3\ **Last updated:** [May 15, 2024, 3:20pm UTC](https://meta.discourse.org/t/forum-stuck-on-loading/308075 "2024-05-15T15:20:44Z")
Hello, after installing the official AI plugin the forum remained “loading”, I deleted it and it still loads, I don’t know what’s happening. --- ## [Who can help me analyze why rebuilding is not possible when adding the cf real ip?](https://meta.discourse.org/t/cf-real-ip-rebuild/303509)
**Author:** [@5804829](https://meta.discourse.org/u/5804829)\ **Replies:** 4\ **Last updated:** [April 12, 2024, 4:22pm UTC](https://meta.discourse.org/t/cf-real-ip-rebuild/303509 "2024-04-12T16:22:20Z")
Attached is the installation log Attached is the installation log Added - "templates/cloudflare.template.yml" to app.yml log.txt (167.9 KB) --- ## [Code highlighting failed because bunny.net CDN](https://meta.discourse.org/t/code-highlighting-failed-because-bunny-net-cdn/296333)
**Author:** [@pfaffman](https://meta.discourse.org/u/pfaffman)\ **Replies:** 3\ **Last updated:** [March 8, 2024, 10:49am UTC](https://meta.discourse.org/t/code-highlighting-failed-because-bunny-net-cdn/296333 "2024-03-08T10:49:45Z")
Someone compained that code highlighting isn’t working on their site. I’ve replicated the issue on mine. The issue seems to be that the CDN is blocked by CORS policy: I fixed the problem by adding js to the “add cors… --- ## [Job exception: getaddrinfo: Temporary failure in name resolution](https://meta.discourse.org/t/job-exception-getaddrinfo-temporary-failure-in-name-resolution/293249)
**Author:** [@paojiao](https://meta.discourse.org/u/paojiao)\ **Replies:** 1\ **Last updated:** [January 29, 2024, 2:51pm UTC](https://meta.discourse.org/t/job-exception-getaddrinfo-temporary-failure-in-name-resolution/293249 "2024-01-29T14:51:40Z")
Hello everyone, after adding CDN to my forum, I found that I couldn’t send emails. I’m not sure if it’s due to the forum or CDN issue. The error message is as shown above /usr/local/lib/ruby/3.2.0/socket.rb:231:in \`geta… --- ## [Removed CDN, but discourse still points to it in browser cache?](https://meta.discourse.org/t/removed-cdn-but-discourse-still-points-to-it-in-browser-cache/292864)
**Author:** [@sweetbeems](https://meta.discourse.org/u/sweetbeems)\ **Replies:** 2\ **Last updated:** [January 28, 2024, 3:44am UTC](https://meta.discourse.org/t/removed-cdn-but-discourse-still-points-to-it-in-browser-cache/292864 "2024-01-28T03:44:36Z")
I unfortunately changed my discourse server’s ip address, which has caused issues with my cloudfront domain. So, I commented out DISCOURSE\_CDN\_URL from the yaml file and rebuilt. However, when I go to the discourse app … --- ## [Cloud storage and cdn](https://meta.discourse.org/t/cloud-storage-and-cdn/289993)
**Author:** [@thomson\_spratt](https://meta.discourse.org/u/thomson_spratt)\ **Replies:** 1\ **Last updated:** [December 29, 2023, 4:47am UTC](https://meta.discourse.org/t/cloud-storage-and-cdn/289993 "2023-12-29T04:47:49Z")
I’m posting because I can’t find an updated version. I’m thinking of using discourse with wasabi/backblaze and a CDN like cloudflare. I’d appreciate a guide or tutorial on the above. Thank you for reading during this … --- ## [Providing a more understandable explanation for ‘s3 use cdn url for all uploads‘ setting](https://meta.discourse.org/t/providing-a-more-understandable-explanation-for-s3-use-cdn-url-for-all-uploads-setting/283796)
**Author:** [@PrettyGirl](https://meta.discourse.org/u/PrettyGirl)\ **Replies:** 7\ **Last updated:** [October 31, 2023, 1:33am UTC](https://meta.discourse.org/t/providing-a-more-understandable-explanation-for-s3-use-cdn-url-for-all-uploads-setting/283796 "2023-10-31T01:33:24Z")
I noticed the setting “s3 use cdn url for all uploads” has the description as “Use CDN URL for all the files uploaded to s3 instead of only for images.” The term “instead” above in this context could lead users to belie… --- ## [DISCOURSE\_CDN\_URL with BunnyCDN](https://meta.discourse.org/t/discourse-cdn-url-with-bunnycdn/282965)
**Author:** [@alethic](https://meta.discourse.org/u/alethic)\ **Replies:** 1\ **Last updated:** [October 21, 2023, 9:18am UTC](https://meta.discourse.org/t/discourse-cdn-url-with-bunnycdn/282965 "2023-10-21T09:18:04Z")
Hello? I’m using Bunny, but something went wrong when I added DISCOURSE\_CDN\_URL. The article below is obviously out of date. How-to-speed-up-Discourse-with-BunnyCDN My origin url is an ip address. how do I fill it in … --- ## [We are unable to detect if your account has been created, please make sure you have cookies enabled](https://meta.discourse.org/t/we-are-unable-to-detect-if-your-account-has-been-created-please-make-sure-you-have-cookies-enabled/282612)
**Author:** [@alethic](https://meta.discourse.org/u/alethic)\ **Replies:** 1\ **Last updated:** [October 18, 2023, 9:03am UTC](https://meta.discourse.org/t/we-are-unable-to-detect-if-your-account-has-been-created-please-make-sure-you-have-cookies-enabled/282612 "2023-10-18T09:03:33Z")
hello? Discourse-doctor and can send emails normally. When I use the browser, no matter whether the device is a mobile phone or a computer, even if the incognito mode is turned on, still cannot register. Discourse vers… --- ## [Uncaught SyntaxError: forum spins nonstop and never loads](https://meta.discourse.org/t/uncaught-syntaxerror-forum-spins-nonstop-and-never-loads/281219)
**Author:** [@CJtheSiteWizard](https://meta.discourse.org/u/CJtheSiteWizard)\ **Replies:** 12\ **Last updated:** [October 6, 2023, 7:33am UTC](https://meta.discourse.org/t/uncaught-syntaxerror-forum-spins-nonstop-and-never-loads/281219 "2023-10-06T07:33:21Z")
Hoping someone here can point me in the right direction. As titled, our forum at forum.wackywriters.com spins and never loads. Console shows this series of errors: Mostly Uncaught Syntax Error, though there is a “jQu… --- ## [Cdn upload appearing as external image](https://meta.discourse.org/t/cdn-upload-appearing-as-external-image/277954)
**Author:** [@태우\_김](https://meta.discourse.org/u/%ED%83%9C%EC%9A%B0_%EA%B9%80)\ **Replies:** 1\ **Last updated:** [September 6, 2023, 5:36am UTC](https://meta.discourse.org/t/cdn-upload-appearing-as-external-image/277954 "2023-09-06T05:36:38Z")
Hello there! I’m using a CDN to upload images, and they appear fine in the preview, but when I publish a post, the images show up as “external image” links. I can view the images normally by clicking the links, so it doe… --- ## [S3, Assets & CDN Error](https://meta.discourse.org/t/s3-assets-cdn-error/272504)
**Author:** [@LimitlessGreen](https://meta.discourse.org/u/LimitlessGreen)\ **Replies:** 3\ **Last updated:** [August 5, 2023, 2:47pm UTC](https://meta.discourse.org/t/s3-assets-cdn-error/272504 "2023-08-05T14:47:19Z")
Hi, I’m facing a strange issue, regarding to: S3 (DigitalOcean), Assets (over S3) and CDN Endpoint. Description of the Problem: In the case of an error, I’m only seeing the loading animation, and the errors are displaye… --- ## [1 of 16551 uploads are not migrated to S3. S3 migration failed for db 'default'](https://meta.discourse.org/t/1-of-16551-uploads-are-not-migrated-to-s3-s3-migration-failed-for-db-default/255772)
**Author:** [@pawelorzech](https://meta.discourse.org/u/pawelorzech)\ **Replies:** 21\ **Last updated:** [July 11, 2023, 12:06pm UTC](https://meta.discourse.org/t/1-of-16551-uploads-are-not-migrated-to-s3-s3-migration-failed-for-db-default/255772 "2023-07-11T12:06:15Z")
Hi there, I’m trying to migrate to S3, but my migrate\_to\_s3 fails. Updating the URLs in the database... Removing old optimized images... Flagging all posts containing lightboxes for rebake... 9756 posts were flagged fo… --- ## [Idea For Low Cost CDN service for assets (semi free)!](https://meta.discourse.org/t/idea-for-low-cost-cdn-service-for-assets-semi-free/267969)
**Author:** [@ARHAEEM](https://meta.discourse.org/u/ARHAEEM)\ **Replies:** 0\ **Last updated:** [June 12, 2023, 12:43am UTC](https://meta.discourse.org/t/idea-for-low-cost-cdn-service-for-assets-semi-free/267969 "2023-06-12T00:43:10Z")
I know many bbcode forums on internet asking the users to upload their own files into urls like imgur then embed the urls in posts.. But in some unique forums i found they ask users to upload using urls but they use cac… [Next page](https://meta.discourse.org/tag/cdn/46.md?match_all_tags=true&page=1&tags%5B%5D=cdn)