challengermode.com
Observed Jul 19, 2026, 12:35 UTC (15h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byGoogle Workspace
Also usesGoogle Search ConsoleAtlassian
IPv6 · 6 subdomains · tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat challengermode.com actually stands on - every host below is a signed observation
challengermode.com
A / AAAA
172.66.150.204104.20.36.392606:4700:10::6814:24272606:4700:10::ac42:96cc
Cloudflareserves the site
NS
perla.ns.cloudflare.comdante.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
alt1.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comalt2.aspmx.l.google.com+1 more
Google Workspacereceives its email
HTTPS probe
redirect
Redirecting (3xx) 307 → https://www.challengermode.com/
HTTP status307
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time575 ms
DNS resolutionNOERROR
Redirect chain
https://www.challengermode.com/Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 2
172.66.150.204104.20.36.39
AAAA 2
2606:4700:10::6814:24272606:4700:10::ac42:96cc
MX 5
5alt1.aspmx.l.google.com10alt4.aspmx.l.google.com1aspmx.l.google.com5alt2.aspmx.l.google.com10alt3.aspmx.l.google.com
TXT 7
google-site-verification=TF9Q47iPTjNZSKphms8x51jd3XJ7Zb4kMWzDUPHDKncgoogle-site-verification=_XQf4MKlIEbMtmnUm1yY18Zh5UgL9O2S_uCEvQy6pZ0v=spf1 include:mail.zendesk.com include:mailgun.org include:_spf.google.com include:u1777517.wl018.sendgrid.net include:spf.tipalti.com -allatlassian-domain-verification=D+hUxo0hplGMDZrUP6FTORhtwALwJUGbuKnZlMQGFuIboa8a5i2qh7czamST1+Augoogle-site-verification=2sDPh2JRiAtC56XSOHBXQRaEQncdEaZuLXf10UGuOfgv=DMARC1; p=quarantine; pct=100; rua=mailto:christopher@challengermode.com; ruf=mailto:christopher@challengermode.com; adkim=r; aspf=r;v=DKIM1; (detected)
NS 2
perla.ns.cloudflare.comdante.ns.cloudflare.com
SOA 1
dante.ns.cloudflare.com dns.cloudflare.com
CAA 10
issuewild ssl.comissue pki.goog; cansignhttpexchanges=yesissue digicert.com; cansignhttpexchanges=yesissuewild pki.goog; cansignhttpexchanges=yesissue ssl.comissue letsencrypt.orgissuewild digicert.com; cansignhttpexchanges=yesissuewild comodoca.comissue comodoca.comissuewild letsencrypt.org
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
8c6d3d96-c806-468c-b2a6-ec529dcafba0- Output Hash
3ad2aeb7171e0a44fc5408d8396050a91986ffcf645b963d9d52d0b238b74b0a- Signature
ed25519:b730d7c4186447518c2d10b30e2e5b498d7f1d9ad1ea8e8f4b184a408cec6d9a47d63fcd420795dcf913843a75f78a7e366406373e01a8b67f1c23f8fc91a800- Public Key
ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff- Parent
(genesis)- Plane
- fast