arena.run
Observed Jul 25, 2026, 23:05 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation — watch it for 5-minute checks.
Up right now
Email byGoogle Workspace
Secured byLet's Encrypt
Also usesHubSpot
1 subdomain · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat arena.run actually stands on - every host below is a signed observation
arena.run
A / AAAA
52.206.214.15
unattributedserves the site
NS
andy.ns.cloudflare.combonnie.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comalt1.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
arena.run
Let's Encryptissued its certificate
DNS Records
A 1
52.206.214.15
MX 5
1aspmx.l.google.com10alt3.aspmx.l.google.com10alt4.aspmx.l.google.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com
TXT 2
v=spf1 include:servers.mcsv.net include:sendgrid.net include:_spf.google.com include:6758739.spf06.hubspotemail.net ~allv=DMARC1; p=none;
NS 2
andy.ns.cloudflare.combonnie.ns.cloudflare.com
SOA 1
andy.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
arena.run |
C=US, O=Let's Encrypt, CN=YR1 | Sat, 29 Aug 2026 09:07:07 +0000 |
YR1 |
C=US, O=ISRG, CN=Root YR | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YR |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +0000 |
Subdomains (1)
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_161db923b653364b- Output Hash
1cf7d9b20893ab39f953a258c293affd5ca07017d157d076a2e94b791a0c8e5d- Signature
ed25519:c0dd185dfafed18b6618e5dad80bc1fc4b146dd4dabd71c6321f28adbdd0a264569ee335c7ff6700d949528e22670b069209dfa31c2c0e4de014b5e212edb10a- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast