jettchen.me
Observed Aug 16, 2026, 11:08 UTC (7h 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
Secured byLet's Encrypt
Let's EncryptRegistered withGoDaddy.com, LLC
Also usesGoogle Search Console
Google Search Consoledomcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat jettchen.me actually stands on - every host below is a signed observation
jettchen.me
A / AAAA
76.76.21.21
unattributedserves the site
NS
diva.ns.cloudflare.comigor.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
mx1.improvmx.commx2.improvmx.com
improvmx.comreceives its email
TLS
jettchen.me
Let's Encryptissued its certificate
DNS Records
A 1
76.76.21.21
MX 2
10mx1.improvmx.com20mx2.improvmx.com
TXT 3
202010201259305pvrnj3w2qn70aso3mi1zs9g1qyr71s3xnta5uv23n984l2tz0google-site-verification=biwLArMj4k-CoKm0PDI0NTeH8vhrdBlvDP-lW5fq4fov=spf1 a mx include:_spf.elasticemail.com include:spf.improvmx.com ~all
NS 2
diva.ns.cloudflare.comigor.ns.cloudflare.com
SOA 1
diva.ns.cloudflare.com dns.cloudflare.com
DMARC_RECORDS 1
v=DMARC1; p=none;
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
jettchen.me |
C=US, O=Let's Encrypt, CN=YR1 | Mon, 21 Sep 2026 09:38:56 +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 (0)
None observed.
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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_5d40f05a76332a61- Output Hash
e7bcbddd3eaaf421973d96af49df801122027603c0703dcc077ad7b46d341619- Signature
ed25519:a50b3e0003b8ffa1fe7b19e40b4a9ccff15b028c8b808094e6aa49abfd170a879a6eaeecfd2cf3c4f14ee045fb67714d0aeaf70fcbedd8ecf42a1735e899a501- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast