Analyze any domain

Get a complete DNS, email, SSL, HTTP and network analysis in seconds.

Total

DNS

Email

Security

Network

100

Availability

Domainrandomhouse.com

IPv41

IPv60

MX records2

StatusActive

Domain technical report

Penguin Random House

randomhouse.com

Committed to publishing great books, connecting readers and authors globally, and spreading the love of reading.

Generated: 2026-08-09T10:03:16-05:00 · Cached result

JSON CSV PDF Visit site

IPv41

IPv60

MX2

NS2

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

2 NS record(s); 2 or more required.

✓

SOA record10 / 10 pts · Dns

Authoritative zone record.

✓

DNSSEC chain15 / 15 pts · Dns

DS and DNSKEY detected.

CAA policy0 / 5 pts · Dns

Certificate authority restriction.

✓

DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓

MX records20 / 20 pts · Mail

2 MX record(s).

✓

SPF25 / 25 pts · Mail

SPF policy published.

✓

DMARC25 / 25 pts · Mail

DMARC policy published.

DKIM0 / 20 pts · Mail

No tested DKIM selector responded.

MTA-STS0 / 5 pts · Mail

Mail transport policy.

TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓

Valid TLS certificate55 / 55 pts · Security

81 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers16 / 35 pts · Security

4 of 9 evaluated headers detected.

PTR reverse DNS0 / 30 pts · Network

PTR not detected.

IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

IPv6 connectivity0 / 35 pts · Network

AAAA availability.

✓

DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓

HTTP response40 / 40 pts · Availability

HTTP/2 200

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)

170.171.208.12

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

2 record(s)

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

TXT

9 record(s)

"apple-domain-verification=yZTS6KwXN8ggGgKb"
"9p6r+17hOkZxqzw9YnQt5WnFkAdxglNU7NbMKWtDLIVdqAKH3yxzzO/ya681xc+i5K/bQiZcApmvQPjmNZYbEQ=="
"qhp99ovh4or2b4ie7ju569mgla"
"atlassian-domain-verification=Kl3ByU1tsfV9fKiC7TDDZYz1uCeTeUo0SSEh5SitZ9q99Ua74O571fgiIg//j5Hn"
"mMeYa24w85lzH0nHjojrOfMGlQcEy8UNTqASxsQNWXfiJQk/BiUD1OOz/Sck5v1sEZpHzKJrtxgZw/3trXwovQ=="
"aq+sKMbT9943h3QSyo5+uII4luIxhbO3jB4lic8NRan8KPYsKxvbPXUIkf/39pgvxkmsLS+fsyY8gtU6l0BuHQ=="
"v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all"
"globalsign-domain-verification=KaParXxs1OHDy7o8CMbPpHBN-2m_mzwdPqKMMQ66a6"
"6981mi0mv7p4b1rigrrut2ta94"

NS

2 record(s)

ns1.prh.com.
ns2.prh.com.

SOA

1 record(s)

ns1.prh.com. postmaster.randomhouse.com. 805270 28800 3600 604800 28800

CAA

0 record(s)

—

Not configured

DS

2 record(s)

28139 13 2 E4A60CF6A6CC8262788F8E20EA891367EB711688976FF47B59BBB1A8 AE208843
28139 13 1 73A574B8204F621854E4A8D117D52C454BAC4162

DNSKEY

2 record(s)

256 3 8 AwEAAcjvCWWSM+GAMmodvmqPosYjkjQjA4ChWQfDC57JmywlV9jQe91X mxpfXubFqKNFCTrrwxzk1ZX6dRKXWli6vG7eCtV68ZKOLlhTqtWXnKCc 96uAVeM3Xrl3Qz9uUYb4+TMsWaaFD2xAPCiMW+xQNl46edL3SRgmLbtE Q4x58W5n
257 3 13 Z7jBzpZv+yIaOkj0qBrLgzZw3XociJrduuYeZ8jIIFx0UHaO8m4Xgz0F 4eRWb7NgA9C//mBbZmxCsKTk0mnoEg==

RRSIG

11 record(s)

DNSKEY 8 2 600 20260904024953 20260805022718 5709 randomhouse.com. KZGku9rWPlWoTcdKxMbD2xeRkaoUeg9I4oorsdflcIw/8RG8rTmaz8Mr FJ3hPSep+nKMPgBeSXZM8bdYTMZPU43F32WP1VsEkTwimeC+BfH4jAeI RF3N7SUXOycD9HZqSwI9YX4am7S9vcr5cCp3BJDOgvlFpLqXKqA4NcGx cyo=
DNSKEY 13 2 600 20260904024953 20260805022718 28139 randomhouse.com. bR17OJGB4gT3gnDVwz5L+6BaMAMZ0NQr6DEOwAvCE8ff0ha7CRU8G/zn a3qDIognY2by1faDTyJExT/xQXa/Vw==
SOA 8 2 600 20260908140001 20260809130001 5709 randomhouse.com. OD4knTZlMgQEnSEHiUBt3Yh5SkRAsrKN+1/HGcEY4k7CWSSdHmfIFL5Q KEh/SVlTQNuGAOXyFbeLV68rAPUalWkHHPtQ/ZopLjSoRXuvLA9rttvC agcD4bdPbonWJE5vG5HolalO0PbhPabiVxJtoYZAXGZ46EvUHaqfobiX Or8=
SOA 13 2 600 20260908140001 20260809130001 28139 randomhouse.com. Gb/eUqsSERUY5UUJ8mrRVMrWudNo5sOIgfVDu3XtGRSmCONSOXCpPrJC 9d27vOH7QWuqGgPvbLpsqjlMM5PKfw==
NS 8 2 600 20260904050321 20260805040814 5709 randomhouse.com. xZcu/i2rzggbgDlKBYU3X3/MuOWUiaEMLLMrcY4CiXnnqLbW7/wWKZU/ t628SviyPPXCZkpYWwGE+vkamegp9yBSfbZi501ssOYxKsCr6FXaTyTn aLJMl7Iuf97dYJC7SleTjFwwQr8MaVMoOqvkb3axXOzdylPc07tg3yGB bjs=
NS 13 2 600 20260904050321 20260805040814 28139 randomhouse.com. 0q09vMp6Hd8ekjEdia4/HbL/qxGrzfFEGcO7+aSrwWhWhqKUa2GNwTF5 GDYZNEAz80cOnYBzz5Yzb3IUsAeiJg==
MX 13 2 600 20260904050321 20260805040814 28139 randomhouse.com. uEzXdx4fT9PgfJeH6BFpkEfo8mqkkCtTVpM+ocV7PzOMv6OZFq5qk9Hb 88NqBky/sVLSIoaTjYHkm3Uq2EaT0w==
MX 8 2 600 20260904050321 20260805040814 5709 randomhouse.com. N0Bmp73oHu5UzWQAHmPKep2MrYEdgwNfgNIU/H15xPAL4Mz8p+AKcDeA PT5A7Zu3N4wrEKMa0IuLrFH4w/2HmnsPIoHeQTUrlWU6ddaCrXBlrWS7 zYmM2q9tO0nXRNoPQtE5HftcEAqm8Okz8bPcFXe6EkDGtxoO/Wgfm5rD LKk=
A 8 2 600 20260904050321 20260805040814 5709 randomhouse.com. C3sVHo9gmgdBN/O5//aftrEChBiNkDtLSx801mzHsVyOMxKxmaSKdk2K hxiJ2S1kpB1ZWFtPQcvS8gYhoEHxSQ1eDiOYUy2uXi5AEshPskugljgF 4UsE+IsHyNFm1sKcvlcMECsTCxz/IbRFUJn0Zpuf/tS6JWqtsI5y4zZ1 UTY=
A 13 2 600 20260904050321 20260805040814 28139 randomhouse.com. 4FPrmBWCTqfK9B1yv1rGOORh2qr8fFegQvLnJKMYGMTHrtZIPgBFfolz ley5jKeKI+ppBunX3qqqofyzOwXK/Q==
DS 13 2 86400 20260815002237 20260807231237 41446 com. tdbZ+vHopcdHgmaibM8wQSRHBJGxEwmaBPGSnzW/qe4OI0wbXA3CEaGx 2Mts+TAXLKr+sazrMbuBr69ZHynvmQ==

NSEC

0 record(s)

—

Not configured

NSEC3

0 record(s)

—

Not configured

SRV

0 record(s)

—

Not configured

NAPTR

0 record(s)

—

Not configured

TLSA

0 record(s)

—

Not configured

SSHFP

0 record(s)

—

Not configured

SPF

Configured

v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all

DMARC

Configured

v=DMARC1; p=quarantine; rua=mailto:dmarc_agg@vali.email

DKIM

Not found

—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Penguin Random House

Description

Committed to publishing great books, connecting readers and authors globally, and spreading the love of reading.

Final URL

https://www.penguinrandomhouse.com/

HTTP status

200

HTTP

Status

HTTP/2 200

Final URL

https://www.penguinrandomhouse.com/

Version

Server

nginx

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Sectigo Limited

*.randomhouse.com

Valid from

2026-04-13T19:00:00-05:00

Valid until

2026-10-29T18:59:59-05:00

Days remaining

Protocol

TLSv1.2

Cipher

ECDHE-RSA-AES256-GCM-SHA384

Security headers

4 active

✓

HSTSImplemented

✓

Content Security PolicyImplemented

✓

X-Content-Type-OptionsImplemented

—

X-Frame-OptionsNot detected

✓

Referrer PolicyImplemented

—

Permissions PolicyNot detected

—

Cross-Origin-Opener-PolicyNot detected

—

Cross-Origin-Embedder-PolicyNot detected

—

Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent

✓

Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

170.171.208.12

56,09 ms

Cloudflare

1.1.1.1

170.171.208.12

129,61 ms

Quad9

9.9.9.9

170.171.208.12

188,97 ms

OpenDNS

208.67.222.222

170.171.208.12

69,25 ms

AdGuard

94.140.14.14

170.171.208.12

62,11 ms

IP, geolocation and ASNAssociated network information

170.171.208.12

No data

success

country

region

city

asn

organization

isp

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

us-smtp-inbound-2.mimecast.com

Port 25: Closed/unreachable - 31.1 ms - 
Port 465: Closed/unreachable - 4020.5 ms - 
Port 587: Closed/unreachable - 29.7 ms - 220 us-smtp-inbound-1.mimecast.com ESMTP; Sun, 09 Aug 2026 11:03:15 -0400

Recently analyzed domains

View all →

asso.fr4 wakehealth.edu76 franke.com83 amazonaws.com78 gsa.gov95 bc.ca4 flysaa.com83 youslade.com58 republic.ru4 cloudflare.com94