bigwww.com
Observed Jul 18, 2026, 13:07 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.
Not responding
Runs onCHINANET SiChuan Telecom Internet Data Center
Registered withChengdu Fly-Digital Technology Co., Ltd.
tranco_20k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat bigwww.com actually stands on - every host below is a signed observation
bigwww.com
A / AAAA
220.167.104.21
CHINANET SiChuan Telecom Internet Data Centerserves the site
NS
ns12.bigwww.comns11.bigwww.com
bigwww.comanswers its DNS
MX
mxbiz2.qq.commxbiz1.qq.com
qq.comreceives its email
HTTPS probe
server_error
Server error (5xx) 526 Server Error
HTTP status526
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time297 ms
DNS resolutionNOERROR
Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 1
220.167.104.21
MX 2
10mxbiz2.qq.com5mxbiz1.qq.com
TXT 2
v=spf1 ip4:116.255.229.140/32 ip4:222.208.183.233/32 ip4:116.255.134.183/32 ip4:203.171.225.134/32 ip4:122.114.38.73/32 ~allv=DKIM1; (detected)
NS 2
ns12.bigwww.comns11.bigwww.com
SOA 1
ns11.bigwww.com hostmaster.hichina.com
TLS Certificates (0)
None.
Subdomains (6)
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
eff7ae06-69b5-4ff0-b7ca-72431201129e- Output Hash
47462079f5da3af46dcfb9ec55413c41037b9a1837ec1fd305aaef8ab5d4d2af- Signature
ed25519:0b54b83a176cdd626dcf3f13111cf25597d2aebe33472b5ec1a427a6178d4ab9f5f2c1513eb6d7607b6dc1d1c8187f6cb775616e212dc66798f447ff9f19bb01- Public Key
ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff- Parent
(genesis)- Plane
- fast