holzkern.com
Observed Aug 2, 2026, 18:02 UTC (8d ago). Every field below was attested with an Ed25519 signature at scan time.
This reading of holzkern.com was taken 8d ago
holzkern.com is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting holzkern.com under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.
Watch holzkern.com Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Guarded by a firewall
Runs onCloudflare
Email byGoogle Workspace
Secured byGoogle Trust Services
Also usesFacebook/MetaGoogle Search ConsoleNotion
IPv6 · tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat holzkern.com actually stands on - every host below is a signed observation
holzkern.com
A / AAAA
172.66.42.247172.66.41.92606:4700:3108::ac42:29092606:4700:3108::ac42:2af7
Cloudflareserves the site
NS
val.ns.cloudflare.comwatson.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
holzkern.com
Google Trust Servicesissued its certificate
DNS Records
A 2
172.66.42.247172.66.41.9
AAAA 2
2606:4700:3108::ac42:29092606:4700:3108::ac42:2af7
MX 5
1aspmx.l.google.com10alt3.aspmx.l.google.com10alt4.aspmx.l.google.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com
TXT 8
Sendinblue-code:c78a27eb3acbeca02946581ce82d814fapple-domain-verification=F4kyRmiKSpAEDMfIfacebook-domain-verification=v60cfkpn3kurpw29ddmjqhaq2juuaogoogle-site-verification=BbvIgfxTFEannhnNuJDnwmH9WS05JZHn8Qn31YkUolIgoogle-site-verification=RWgMMAiwmeTXMJRLgArq2ZodYO41gDP9n0jnXLvpU_cgoogle-site-verification=g6AdEQi4HQFBy9e_m6C6zWWmc_qcoPOCTklsxjvHwrgnotion-domain-verification=kLUJLWDlec6JmsXJLApgnRMeOLMqMATKknmbIIhJVGkv=spf1 mx include:sendgrid.net include:_spf.google.com include:1584923d6.spf2.netcorecloud.net ip4:185.41.28.0/22 ip4:94.143.16.0/21 ip4:185.24.144.0/22 ip4:153.92.224.0/19 ip4:213.32.128.0/18 ip4:185.107.232.0/22 ip4:77.32.128.0/18 ip4:77.32.192.0/19 ip4:212.146.192.0/18 ip4:172.246.0.0/18 ip4:206.55.144.0/20 ip4:216.221.160.0/19 ip4:76.223.128.0/19 ip4:54.240.96.0/19 ip4:54.240.64.0/19 ip4:76.223.176.0/20 ip4:23.251.224.0/19 ip4:23.249.208.0/20 ip4:69.169.224.0/20 ip4:54.240.0.0/18 ip4:199.127.232.0/22 ip4:199.255.192.0/22 ip4:149.202.180.44 ip4:149.202.164.78 ip4:195.154.60.200 ip4:51.15.253.103 ip4:51.15.34.108 ip4:51.15.217.91 ip4:51.15.86.245 ip4:178.32.127.170 ip4:91.121.218.27 ip4:178.33.110.46 ip4:94.23.165.77 ip4:94.23.147.222 ip4:178.33.113.205 ip4:91.121.219.64 ip4:94.23.165.65 ip4:94.23.148.7 ip4:87.98.152.90 ip4:91.121.55.57 ip4:178.32.44.31 ip4:141.95.157.217 ip4:141.94.194.217 ip4:51.91.164.78 ip4:217.182.241.115 ip4:141.94.255.216 ip4:141.94.241.170 ip4:35.158.71.15 ip4:35.158.67.243 ip4:3.12...[truncated]
NS 2
val.ns.cloudflare.comwatson.ns.cloudflare.com
SOA 1
val.ns.cloudflare.com dns.cloudflare.com
CAA 12
issue "amazonaws.com"issue "comodoca.com"issue "digicert.com; cansignhttpexchanges=yes"issue "letsencrypt.org"issue "pki.goog; cansignhttpexchanges=yes"issue "ssl.com"issuewild "amazonaws.com"issuewild "comodoca.com"issuewild "digicert.com; cansignhttpexchanges=yes"issuewild "letsencrypt.org"
DMARC_RECORDS 1
v=DMARC1; p=reject; sp=reject; rua=mailto:c02d89a8de814cef86f9b62e0cf9b55b@dmarc-reports.cloudflare.net; rf=afrf; pct=100; ri=86400
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
holzkern.com |
C=US, O=Google Trust Services, CN=WE1 | Thu, 08 Oct 2026 03:52:39 +0000 |
WE1 |
C=US, O=Google Trust Services LLC, CN=GTS Root R4 | Tue, 20 Feb 2029 14:00:00 +0000 |
GTS Root R4 |
C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA | Fri, 28 Jan 2028 00:00:42 +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_ec6836e9f0240998- Output Hash
08d22723a2a1ae57eb0c6c075933115ca4b5da10d2a5d321d9342168bbcf057a- Signature
ed25519:8218d2bdda4674b941e4438b3ea49fb4158ff5882b3fb1c07a32cb809c9f21c7d879f72ddd4fc9572aad38bedfdd5846cc38f240c3ff64fdf3f9d00fd2174001- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast