Try the following:
$ nslookup github.com
[...]
Non-authoritative answer:
Name: github.com
Address: 140.82.121.3
See also the completely ignored post in their forums.
comment from the forum:
New ISPs in my country are IPv6-only because there is no new IPv4 space to be provided to them. They do have a over-shared IPv4 address by CGNAT but due to the oversharing, it is unstable and not rare to be offline. For these companies, the internet access is stable only in IPv6.
Thinking about the server-side, some cloud providers are making extra charges for IPv4 addresses (e.g.: Vultr.com) so most of the servers in my company are IPv6-only. Cloning github repositories is very cumbersome due to the lack of IPv6 support and this issue affects me and my team mates on a daily basis.
The math is simple: there are 4.88 billion internet users in the world but the IPv4 space only provides 4 billion addresses. It’s over: IPv4 is obsolete and is provided in a legacy mode. Current applications and services must be IPv6 enabled otherwise it should be seen as obsolete. For that matter, Github.com is an obsolete service because it relies on obsolete technology as IPv4.
Funny how different situations can be. I can’t get an IPv6 address unless I pay for insanely expensive business tiers.
I had a very small cheap ISP in France (Quantic Telecom) and they didn’t even monitor their network for ipv6 issues. I had to report problems myself every other week. They had less than 90% uptime in 2023, so I ended up getting a refund
Oof, imagine having to put a single 9 into your SLA. You would be laughed out of the room in a commercial setting.
“IPv6 is not a feature; its absence is a bug”
- Someone on the Flathub repo, I think
Does gitlab.com have it?
Name: gitlab.com Address: 172.65.251.78 Name: gitlab.com Address: 2606:4700:90:0:f22e:fbec:5bed:a9b9
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You got off easy! I almost got stabbed in the heart by a nearby priest. Had to unpublish my name and leave his local area to get away.
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I’ve talked to several network engineers over the years about IPv6, engineers that work as hands on with actual production infrastructure as you can get. And they all said that IPv6 would likely never be fully adopted.
But why ?
I am not a full network engineer so take my opinion with a grain of salt. From what I understand, NAT with IPv4 works really really well to mitigate IPv4 address exhaustion. Then there’s an issue with the amount of extra processing switches and routers need to do IPv6, we’re going from 32 bits to 128 bits which is a huge increase and for switches and routers that are handling packets as fast as technically possible with a low amount of resources typically, that’s a not insignificant hurdle.
It’s just easier to do IPv4 in every way, plus that’s what the world’s been using and is used to.
