castbox.fm
Observed 2026-06-13T08:18:03.474Z (4h ago). Every field below was attested with an Ed25519 signature at scan time.
Don't trust this page — check the math. Verification runs entirely in your browser. Nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
1ab62757-5cf5-4469-8ee2-f8d398eabb0c- Output Hash
266a721037e59a1956aaf4091cafcd8658fb6e3a391daf53bdebf71bead445b3- Signature
ed25519:87cd2f318519934be87fc26ddf15c699aae0e23dd45d02e171417c0b82a8e13fe2f818bf3e543e6a861ba02f3b208634b2e3a520e8ab50bc64613396dd716d0c- Public Key
ed25519:d3f6015a95abdad7e8166ad80938a5885500170bb75f8cdb425b8fd2772bec29- Parent
(genesis)- Plane
- fast
DNS Records
A 2
104.20.29.143172.66.159.47
AAAA 2
2606:4700:10::ac42:9f2f2606:4700:10::6814:1d8f
MX 5
{"priority":1,"exchange":"aspmx.l.google.com"}{"priority":10,"exchange":"alt3.aspmx.l.google.com"}{"priority":10,"exchange":"alt4.aspmx.l.google.com"}{"priority":5,"exchange":"alt1.aspmx.l.google.com"}{"priority":5,"exchange":"alt2.aspmx.l.google.com"}
TXT 8
anthropic-domain-verification-dn0srx=KLYpjzbz5CrSJmIdQkyIsv8t6google-site-verification=3mFzIfOXnoEMgL-JMulOFtrhLfDKswAipdTnIzUr1UEgoogle-site-verification=5Vz4UGhank_MS0JCLzeIGqXwqYodxDcXfzHG2URnlRcgoogle-site-verification=AUfrk7KKqihYAX7cD5TkHHSP2aJp2Y3nOU0TMVxqYKQgoogle-site-verification=LQsnY64pPx4WMLgHyRgpi-qOH38IAfq6gsY2xUuJQ4sgoogle-site-verification=qRzbWr-3P6DqfeqQVl5vDuzJgeHV6zHaCnKhxEAUe7Ev=spf1 include:spf.zoho.com include:transmail.net include:servers.mcsv.net include:mail.zendesk.com include:amazonses.com include:_spf.google.com ~allv=DMARC1;p=reject;rua=mailto:yupeng.zhang@castbox.fm;ruf=mailto:yupeng.zhang@castbox.fm
NS 2
charles.ns.cloudflare.comsara.ns.cloudflare.com
SOA 1
{"mname":"charles.ns.cloudflare.com","rname":"dns.cloudflare.com","serial":2405337591,"refresh":10000,"retry":2400,"expire":604800,"minimum":1800}
TLS Certificates (2)
| Common Name | Issuer | Expires |
|---|---|---|
castbox.fm |
C=US, O=Let's Encrypt, CN=E8 | Thu, 06 Aug 2026 06:43:50 +0000 |
E8 |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Fri, 12 Mar 2027 23:59:59 +0000 |
Subdomains (0)
None observed.