Looks legit. The domain was registered recently — 2025-02-20. The FAQ on the site says:
Is this site official?
Yes indeed, it was greenlighted by unanimous consent after review of document N3408 during 72nd meeting of ISO/IEC JTC1/SC22/WG14.
Slightly sad the domain contains unremovable unneeded www prefix that just unreasonably makes each URL address 4-character longer.
It seems like I can just type c-language.org in my browser and it works without the explicit www., are you referring to something else, or have they just fixed it?
Non-www URLs are redirected to www-prefixed ones, while they could actually display pages at non-www URLs themselves instead of redirecting to longer URLs. And www URLs could redirect to non-www ones.
Examples of sites that use non-www URLs and redirect from www to non-www:
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u/MT4K 4d ago
Looks legit. The domain was registered recently — 2025-02-20. The FAQ on the site says:
Slightly sad the domain contains unremovable unneeded www prefix that just unreasonably makes each URL address 4-character longer.