ATT Routing issue to open source software website hosted in France

I've tried to attach the ping and traceroute results (plain text) but there is a 403 error. How best to include that information?

Will try an image to see if that works.

<update> found that i can include log as a code block

$ traceroute godotengine.org
traceroute to godotengine.org (212.85.158.4), 64 hops max, 52 byte packets
 1  dsldevice.attlocal.net (192.168.1.254)  2.855 ms  2.119 ms  1.701 ms
 2  104-182-52-1.lightspeed.rlghnc.sbcglobal.net (104.182.52.1)  4.206 ms  3.837 ms  2.991 ms
 3  99.173.77.16 (99.173.77.16)  3.116 ms  4.182 ms  3.919 ms
 4  12.123.138.230 (12.123.138.230)  17.093 ms  12.797 ms  15.834 ms
 5  wswdc21crs.ip.att.net (12.122.2.190)  10.985 ms  12.360 ms  10.718 ms
 6  wswdc401igs.ip.att.net (12.122.113.37)  13.190 ms  11.737 ms  12.154 ms
 7  * * *
 8  * * *
 9  * * *
10  * * *
11  * * *
12  * * *
13  * * *
14  * * *
15  * * *
16  * * *
17  * * *
18  * *^C

$ ping godotengine.org
PING godotengine.org (212.85.158.4): 56 data bytes
Request timeout for icmp_seq 0
Request timeout for icmp_seq 1
Request timeout for icmp_seq 2
Request timeout for icmp_seq 3
Request timeout for icmp_seq 4
Request timeout for icmp_seq 5
Request timeout for icmp_seq 6
Request timeout for icmp_seq 7
Request timeout for icmp_seq 8
Request timeout for icmp_seq 9

Hi, magiclantern, let us see what we can do to help you access this website.

There are two possibilities that come to mind: the site is blocking your IP, or the site is being detected as harmful.

After looking over your traceroute, we see that the timeout is happening outside of the AT&T network. Hop 6 is the last one before you're connected to the website, and since it's working, it's likely that the website itself may be blocking your IP.

Software like AT&T's Mobile Security, and other 3rd party security services, can prevent websites from loading. This is because there is a vulnerability that was detected by the service indicating that the website has been rated harmful. To determine if this is the case, visit https://mxtoolbox.com.

1. Enter the website
2. Wait for the results
3. Green checks are what you want to see
4. If you see red, contact your WebHost to help resolve the codes

To resolve the vulnerabilities, you will need to contact the WebHost or your web developer. AT&T is unable to assist with items of this nature.

Let us know what you found and if you need further assistance.

Aminah, AT&T Community Specialist

In working with support yesterday I disabled all ATT security that could be disabled. No change.

Looks like only 1 green check - yellow and red stuff too.

What does this mean?

Thank you for the update, magiclantern.

The results should show green checks across the board. This coupled with the fact that the site appears to be working on the AT&T network, tells us that you'll need to contact the webhost for the site you're trying to reach, as mentioned earlier

We appreciate you for contacting the AT&T Community Forums team. If you need help again in the future, we'll be here.

Aminah, AT&T Community Specialist

After a little reading on DMARC. Seems that is for email message authentication.

Why should my web browser accessing a https website be impacted or care about message authentication?

Noticed that @ATTHelp posted information related to "AT&T's Mobile Security."

This issue is occurring on my ATT fiber internet.

Also, not sure how you are able to state "... the fact that the site appears to be working on the AT&T network..." as I'm on the ATT network and the site is not accessible.

On other networks (my work non-ATT network, my non-ATT cellular provider) I am able to access the site.

I am having the same issue with godotengine.org on att fiber. Godotengine.org is an opensource game development website.

ATT replaced my modem and it had no effect.

@nyfiberuser - I reached out to some of the folks that use Godot and they recommended using a VPN. Turns out there are some free options that I have been able to verify work (Proton).

Although open source game engine software should be considered safe to most people, for some reason it is blocked on at least parts of ATT's fiber network.

I tried calling ATT customer service twice before posting here, but they seemed to be clueless about this type of filtering.