What this is

This site maintains a real example of a DNS boundary case: a single domain label at the 63 character limit defined by the Domain Name System specification (RFC 1035). The label is based on the opening lyric of The Green and Red of Mayo, with spaces removed.

Useful for developers

URL validation, parsers, database field limits, QR density, form validators, and edge-case tests.

Useful for mail admins

Email address validation, SMTP handling, SPF and DMARC alignment tests, and logging edge cases.

Stable, public, reachable

Maintained as a dependable test input so you can reference it in issues, docs, and automated tests.

Media reported

Irish regional newspapers have reported it as Ireland’s longest .ie domain at the time of publication.

Green for the land, red for the heart

Mayo in two colours: fields and fire. Bog and breeze. Match day or a quiet evening, it is the same feeling, the kind that lingers long after you have gone home.

Note: this is an independent cultural and technical project. It is not affiliated with the songwriters, performers, publishers, or rights holders.

They mentioned it

Coverage and references. (Press page has the full list.)

Connaught Telegraph — Mayo sets record for longest .ie domain name The Mayo News — Mayo website sets record for longest .ie domain name Connacht Tribune — Saw Doctors different kind of record