prh.com

Observed Jul 18, 2026, 21:09 UTC (11m ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byMimecast

Registered withCSC Corporate Domains, Inc.

Also usesMiroGoogle Search Console

7 subdomains · tranco_100k

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat prh.com actually stands on - every host below is a signed observation

prh.com

A / AAAA

170.171.208.137

Cloudflareserves the site

ns-643.awsdns-16.netns-1709.awsdns-21.co.ukns-362.awsdns-45.comns-1259.awsdns-29.org

awsdns-16.net + awsdns-21.co.uk + moreanswers its DNS

us-smtp-inbound-1.mimecast.comus-smtp-inbound-2.mimecast.com

Mimecastreceives its email

HTTPS probe

redirect Redirecting (3xx) 301 → https://www.penguinrandomhouse.com/

HTTP status301

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time1072 ms

DNS resolutionNOERROR

Redirect chain

https://www.penguinrandomhouse.com/

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 1

170.171.208.137

MX 2

10us-smtp-inbound-1.mimecast.com
10us-smtp-inbound-2.mimecast.com

TXT 15

MS=0DACDADA2646E04609A04D004D583C64B2AB5B11
miro-verification=20deb2e76b80e8360f078ce72b4c1b020ccbe7e1
google-site-verification=PvrqOFULatXZO4bMGh3PDXNoBvfRPRar9oaC0fNjYgg
openai-domain-verification=dv-qMsRbIKh6Q0cDYo6ZigsHXNI
zFZqS5n9tZgztto757vhj9xK8TJdaaAo8vQTE9eqw6x62/j7PBuoZ1WtWAuUMX6h1BSJL3NM9Ia996M1kytOAA==
j36qkp2642ck9b9bhctsj6kkk5
box-domain-verification=db77a8bd2b4c58c0c06fe162423a3228c6d9be760b24b66336e394f05f465c31
kOXWxREAB+FdCRAcwGNluU4kn0AewzenrEOq/fxWDLKMq1gW6zgkpWrxW9ujoELaIE8BdqUSKDwgU4Y6gTQNfA==
apple-domain-verification=Cw0R0JvpBwJXRyDU
cisco-ci-domain-verification=3644dd845bb0ec2323fbd75912495049911cb4e4d1c2a59bda78048056dd9341

NS 4

ns-643.awsdns-16.net
ns-1709.awsdns-21.co.uk
ns-362.awsdns-45.com
ns-1259.awsdns-29.org

SOA 1

ns-1259.awsdns-29.org awsdns-hostmaster.amazon.com

TLS Certificates (0)

None.

Subdomains (7)

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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for prh.com. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/prh.com">
  <img src="https://domaindrift.io/badge/prh.com.svg"
       width="300" height="64" alt="DomainDrift signed observations for prh.com">
</a>

Ed25519 Receipt

Receipt ID: c6f7f5bf-d46c-4625-8785-d2dea0e3c9a6
Output Hash: 7edc5f23d47dc906c3a5e33dcbcd1a1e2d6ade1cfed4ce7641358f7055cec53a
Signature: ed25519:7d1ac57cff11593e41e4555b705f0e1021894783bfb86629fab16c5697f0d980c25a8981db3d16fb18460a0708f8c0579866c55378f76c45856d27d59c588104
Public Key: ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff
Parent: (genesis)
Plane: fast

Verify this in your browser

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