Let’s Encrypt now (as of 2023) supports having certificates with no CN now, so long domains are fully supported:

https://community.letsencrypt.org/t/simplifying-issuance-for...

The previous workaround available was to include a second, shorter domain on the certificate but that wasn’t always easy or possible.

Just to expand on this, commonName is not at all required in certificates and is basically deprecated/legacy

Letsencrypt does not require you to set it, just subject alternate names, which can be up to 255 characters, but some providers require it for no reason

To further expand, commonName is only deprecated for SSL/TLS server certificates. It is, for example, mandatory for CA certificates and code signing certificates.

surprisingly it's been deprecated since RFC 2818 was published 24 years ago.

It's only more recently that browsers and other common software stopped validating it though

    If a subjectAltName extension of type dNSName is present, that MUST
    be used as the identity. Otherwise, the (most specific) Common Name
    field in the Subject field of the certificate MUST be used. Although
    the use of the Common Name is existing practice, it is deprecated and
    Certification Authorities are encouraged to use the dNSName instead.

* https://datatracker.ietf.org/doc/html/rfc2818#section-3.1

    Therefore, if and only if the presented identifiers do not include a
    DNS-ID, SRV-ID, URI-ID, or any application-specific identifier types
    supported by the client, then the client MAY as a last resort check
    for a string whose form matches that of a fully qualified DNS domain
    name in a Common Name field of the subject field (i.e., a CN-ID).  If
    the client chooses to compare a reference identifier of type CN-ID
    against that string, it MUST follow the comparison rules for the DNS
    domain name portion of an identifier of type DNS-ID, SRV-ID, or
    URI-ID, as described under Section 6.4.1, Section 6.4.2, and
    Section 6.4.3.

* https://www.rfc-editor.org/rfc/rfc6125#section-6.4.4

Also from 2015:

    9.2.2 Subject Distinguished Name Fields
    a. Subject Common Name Field
    Certificate Field: subject:commonName (OID 2.5.4.3)
    Required/Optional: Deprecated (Discouraged, but not prohibited)
    Contents: If present, this field MUST contain a single IP address
    or Fully-Qualified Domain Name that is one of the values contained
    in the Certificate’s subjectAltName extension (see Section 9.2.1).

* https://cabforum.org/wp-content/uploads/BRv1.2.5.pdf#page=17

* https://stackoverflow.com/questions/5935369/how-do-common-na...

Don't you have to be a Non-Government Organization, outside China[1], to be eligible for a .ong domain name?

[1] According to https://www.godaddy.com/help/about-ong-domains-41384

Are you accusing them of being a government organzation, or accusing them of being in China?

NGO is a specific type of organization (such as a 501(c)(3) in the US), which would exclude 'a random person registering a domain': https://en.wikipedia.org/wiki/Non-governmental_organization

That wikipedia article literally says there is "no fixed or formal definition for what NGOs are".

The .ong domain has a policy that has criteria. https://thenew.org/org-people/about-pir/policies/ngo-and-ong...

These are not hard to meet, nor should they be.

> These are not hard to meet, nor should they be.

But hard for a random url-elongator site to meet.

> Registrants are required to certify that they meet the following eligibility requirements when registering a .NGO or .ONG domain name:

> 1. Focused on acting in the public interest. [...] work for the good of humankind and/or the preservation of the planet

> 5. Active Organizations. Members of the .NGO and .ONG community are actively pursuing their missions on a regular basis.

> 6. Structured. Members of the .NGO and .ONG community, whether large or small, operate in a structured manner (e.g., under bylaws, codes of conduct, organizational standards, or other governance structures.)

Clearly this site doesn't qualify.

> 1. Focused on acting in the public interest. [...] work for the good of humankind and/or the preservation of the planet

Operating a publicly available lengthening service is in the public interest and is working for the good of all humans. I used to use hugeurl, but it's no longer in service.

> 5. Active Organizations. Members of the .NGO and .ONG community are actively pursuing their missions on a regular basis.

This is an active organization, pursing a mission of longer urls for the good of all. Maybe this sounds frivolous, but there's a lot of frivolous but chartered 501(c)(3)s, and the requirements doesn't specifically require a registrant to be registered as a non-profit or charity or similar (although such a registration is likely to satisfy an audit, tax records showing a lack of profits/retained earnings may be sufficient)

> 6. Structured. Members of the .NGO and .ONG community, whether large or small, operate in a structured manner (e.g., under bylaws, codes of conduct, organizational standards, or other governance structures.)

We don't have evidence of how it's operated. Many organizations operate websites without publishing their bylaws. Although, I'll grant that circumstantial evidence seems to be that it's operated by an individual.

You can't see from the site who the owner is. Could be a library. Could be a music club. Could be the Gates foundation. An art collective.

Running the website (in this case, an url elongator) is not required to be an objective in the articles of incorporation.

Nevertheless, an URL elongator strikes me as funny, and providing fun for free is surely for the good of humankind.

The GitHub repo linked from the page is owned by an individual (not any kind of structured NGO that would be eligible for this), and they set the location field on their GitHub profile to "NanJing,China" (suggesting that they are located in China).

The author's X account[1] and associated posts are decidedly Chinese, so it's a valid inquiry.

[1]: https://x.com/ccbikai

So happy your reply made me realize that you can purchase longd.ong as a website. https://www.godaddy.com/domainsearch/find?checkAvail=1&tmske...

I love this.

My first impression was: "What in the QA is this? I wonder what this breaks?"

> because they used the domain name as the commonName

Understandable, but that's old-school, right? I'm pretty sure the x.509 extensions for SAN cover this now, and I'm kind of surprised that CA's are sticking to the old way of doing this.

Can you help me understand what is the point of this project? :)