github.githubassets.com times out

[ibn4n]

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I hope I'm posting this to the right place. Much of the github.com website is inaccessible from my home network (I'm posting this from my work network). Using the developer tools in Chrome, I was able to determine that connections to github.githubassets.com were timing out. A tracert to that ends as:

6 18 ms 17 ms 17 ms 167.82.128.8
7 * * * Request timed out.
8 * * * Request timed out.

I looked up that last IP and it appears to be the Fastly CDN. I'm not sure where to go from here to troubleshoot further.

[OshekharO]

Yes after GitHub started revamping it's ui, these problem started appearing i suggest you to use https://www.jsdelivr.com/github instead of GitHub cdn for these.

[hellorayza]

don't have issues tab 😞

[hellorayza]

When visiting GitHub pages, the page load time is extremely slow. After analyzing the HAR file, I found the following:

The bottleneck is github.githubassets.com (GitHub static assets CDN):

Average request time: 57 seconds

Breakdown: TTFB ≈ 25s, Download ≈ 32s

This indicates that the assigned CDN node is very slow, with poor throughput.

Other domains for comparison:

github.com: average ≈ 16s, mostly HTML, acceptable.

avatars.githubusercontent.com and fonts.gstatic.com: no significant issues.

Conclusion:

It’s not a local network or DNS issue, since tracert and ping are fine, and curl https://github.com/login completes in only 3 seconds.

The issue only occurs when loading static assets from github.githubassets.com.

Likely caused by suboptimal CDN node assignment or throttling.

[cjee21]

github.githubassets.com is so slow at certain times of the day that GitHub is almost unusable. Every page takes minutes to finish loading. It is sometimes as slow as 0.2Mbps and my connection to other sites is over 100Mbps during the same time.

The main GitHub homepage takes over 2 minutes to completely load when not yet cached by the browser:
226 requests
15.76 MB / 4.41 MB transferred
Finish: 2.29 min

Here is the tracert if it helps:

>tracert github.githubassets.com

Tracing route to github.githubassets.com [185.199.108.154]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  ***
  2     3 ms     2 ms     5 ms  100.***.***.***
  3     2 ms     2 ms     5 ms  10.***.***.***
  4    17 ms    17 ms    16 ms  10.***.***.***
  5    71 ms    71 ms    71 ms  54113.sgw.equinix.com [27.111.228.38]
  6     *      103 ms   100 ms  cdn-185-199-108-154.github.com [185.199.108.154]

Trace complete.

My public facing IP is 175.143.. from AS4788.

github.githubassets.com does not even support IPv6 which may work better than IPv4 sometimes.