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Any draw backs to using CDN?

Discussion in 'Forum Management' started by sross, Feb 13, 2016.

  1. sross

    sross Active Member

    I was thinking about trying KeyCDN for my big board. I'm new to CDN so a concern would be some items being cached that are no longer representing what is on the site. For example I edit a template or change a graphic on the site, hit refresh and nothing changes. Or let's say a member uploads a gallery image or new avatar, they hit refresh and an old cached image appears. Is that an issue? Thanks
  2. loulou

    loulou Member

    Not at all
    Dynamic data is updated, you only need to manualy clear cache for images, scripts or wait for your cdn to update.
    Try cloudflare, they offer a for free great cdn service
  3. RoldanLT

    RoldanLT Well-Known Member

    +1 for cloudflare (y)
    Anthony Parsons likes this.
  4. digitalpoint

    digitalpoint Well-Known Member

    There are some draw backs, but most likely you would never run into those issues. We use Cloudflare (which we love), and if you have something where you allow users to upload really huge files in single old style HTTP form, they will be limited to files no bigger than 500MB.

    If that's not an issue for you (and if it is, you are doing something wrong, because you should be using an HTML5 or Flash style uploader anyway), you should be using a CDN. In fact, for the price of $0/month, I think people are generally foolish to *not* use Cloudflare. lol
    RoldanLT likes this.
  5. RoldanLT

    RoldanLT Well-Known Member

    Only 100MB for free plan :).
  6. Solidus

    Solidus Well-Known Member

    +2 for CloudFlare.
    $20 for pro is so worth it.
  7. thedude

    thedude Well-Known Member

    We use cloudflare as well just for the cdn features using a separate domain. Saves our server from having to send out static assets.
  8. Mouth

    Mouth Well-Known Member

    Is Cloudflare now a proper CDN? Last I looked, you had to give them full proxy of your entire site and thus they can can control all traffic to/from your source server.
  9. RoldanLT

    RoldanLT Well-Known Member

    It's more than any other CDN.
    But still you can use it like @thedude
  10. Mouth

    Mouth Well-Known Member

    For proper CDN services? My understanding is its a lot less than most proper CDN services.
    I wouldn't want to give full proxying of all traffic to my site to a free provider, the same as I wouldn't give full content aggregation of my site content to a free provider (*cough* TapaTrash)
    I've lost count the number of times I've been to a Cloudflare enabled site only to have Cloudflare report it's giving me content from it's own proxy because the source is unreachable. But if I visit direct.site.com instead, the server appears fine.
  11. JordanH

    JordanH Well-Known Member

    I do not trust cloud flare at all. It has been proven that they do a lot of false positives just to stick their name and logo everywhere.

    yaaaaa...... I have tried them on their free plan it is horrid. They are not a CDN service on the free plan. more of a proxy.
    optrex and Mouth like this.
  12. Alfa1

    Alfa1 Well-Known Member

    If you are on a fast server and the CDN is slow, then the CDN will slow down your site. I had this issue with MaxCDN.
    Cloudfare has had a lot of issues.
    optrex likes this.
  13. Itworx4me

    Itworx4me Well-Known Member

    What are the benefits of using a cdn??
  14. Mouth

    Mouth Well-Known Member

  15. Moshe1010

    Moshe1010 Well-Known Member

    In my case it improved image load drastically but slowed casual thread browsing on threads without many pictures in them. I've tried all the top CDN (minus enterprise) services out there.... so YMMV
  16. Mouth

    Mouth Well-Known Member

    Sounds like a miss configuration? If you're barely using the CDN (threads with not many pictures), then the slowness is likely to come from your source server.
  17. Fred.

    Fred. Well-Known Member

    I agree and I have the same experience.
  18. digitalpoint

    digitalpoint Well-Known Member

    The one thing I've seen some sites run into with CloudFlare sounds like it could be exactly what you saw with that site (at least that's a symptom of the issue). Where a server is configured with its own DDoS protection or somewhere upstream at the network level the same thing. Like when someone hears, "Oh DDoS protection, good idea..." I'm But the admin doesn't configure it properly). Lol

    So the server ends up seeing a zillion HTTP(S) requests for the same (CloudFlare) IPs and starts blocking the traffic to CloudFlare IPs because it thinks those IPs are attacking it.

    On a side-note, anyone who's site is accessible via direct.domain.com really is just plain dumb if they don't want to be DDoSed for real.

    That being said, I've been running every site/domain I own through CloudFlare over HTTPS for almost 2 years now... Billions of HTTP requests, and I've never had any issues myself. If some site get CloudFlare origin server errors, I'd almost bet money it's some anti-DDoS system they have in place that's kicking in because of poor configuration.

    Also - the site you are on right now uses CloudFlare (xenforo.com). Do you see CF errors popping up here ever?
    StarArmy likes this.
  19. Slavik

    Slavik XenForo Moderator Staff Member

    In fairness the staff have seen a couple, also, its a relatively recent change ;)
  20. Fred.

    Fred. Well-Known Member

    That's probably the main problem with most of the sites.

    But I have seen that Cloudflare page several times on your website. Not just a few.
    I have also seen it here on this forum last week.
    I usually leave the website then and go back later.

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