A subdomain is just a promise about a string
Each dot to the left says trust me, there's more specific over here. Nobody checks whether more specific means more meaningful. We tested this thoroughly. It does not.
You have arrived at the deepest subdomain on the internet.
Most domains stop at two or three labels. This one didn’t know when to stop. 5 labels deep, every nameserver still insists there’s one more level below. There isn’t. Or there is.
5
3.2
VALID
Recursive resolution trace
| # | label | nameserver | ttl | rtt |
|---|---|---|---|---|
| 01 | official | ns1.poke.dns | 0s | 1.2ms |
| 02 | poke | ns2.poke.dns | 0s | 1.6ms |
| 03 | poke | ns3.poke.dns | 0s | 2.0ms |
| 04 | poke | ns4.poke.dns | 0s | 2.4ms |
| 05 | poke | ns1.poke.dns | 0s | 2.8ms |
Zone records
- ns1.poke.dns.
- ns2.poke.dns.
- poke.poke.poke.…
- "we are deeper than you think"
- hostmaster.poke 5
What we learned going this deep
The 253-character ceiling is a suggestion we resent
RFC 1035 caps a fully-qualified name at 253 octets and each label at 63. We treat this as a high score to chase, not a limit to respect. Engineering is ongoing.
Every CNAME here points home
Follow any alias far enough and it resolves to the apex you started at. This is either elegant cache design or a stack overflow with good branding. We ship both.
TTL zero, because nothing should be remembered
Caching implies the answer stays true. At this depth the answer is true for exactly as long as it takes to read it, after which a poke is appended somewhere and the world shifts left.
Watch it resolve to itself
$dig +trace official.poke.poke.poke.poke.>; 5 delegations followed>; longest label run on record: 5>official. 0 IN A 127.0.0.1>;; answer is itself, recursion stable@poke.poke.poke.poke.official
Questions from the leaf node
Is this a real subdomain?
It's as real as any name resolution: a chain of strangers agreeing about a string. Whether that constitutes real is between you and your resolver.
Why does the path keep getting longer?
Because you keep going deeper. The Recursion Button appends one more poke label and reloads. The path navigator faithfully renders every level. Stop clicking and it stops growing.
Will I hit the 253-character limit?
Eventually the URL gets unwieldy long before any nameserver complains. We've capped the recursion at a polite ceiling so your browser doesn't file a grievance.
Can I go back up a level?
The internet was not designed with shame in mind, so yes: your back button ascends one delegation at a time. The dashboard pretends not to notice.