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75
Total
70
DNS
90
Email
69
Security
100
Network
60
Availability
Domaintrivago.com
IPv48
IPv62
MX records1
StatusActive
Domain technical report

Access Denied

trivago.com

Generated: 2026-08-10T00:22:21-05:00 · Cached result

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IPv48
IPv62
MX1
NS6

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

8 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

2 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

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

✓
SOA record10 / 10 pts · Dns

Authoritative zone record.

!
DNSSEC chain0 / 15 pts · Dns

Both DS and DNSKEY are required.

!
CAA policy0 / 5 pts · Dns

Certificate authority restriction.

!
DNS propagation0 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

1 MX record(s).

✓
SPF25 / 25 pts · Mail

SPF policy published.

✓
DMARC25 / 25 pts · Mail

DMARC policy published.

✓
DKIM20 / 20 pts · Mail

A DKIM selector was verified.

!
MTA-STS0 / 5 pts · Mail

Mail transport policy.

!
TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓
Valid TLS certificate55 / 55 pts · Security

130 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers4 / 35 pts · Security

1 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: a23-66-127-139.deploy.static.akamaitechnologies.com

✓
IPv4 diversity35 / 35 pts · Network

Two or more IPv4 addresses receive full points.

✓
IPv6 connectivity35 / 35 pts · Network

AAAA availability.

✓
DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

!
HTTP response0 / 40 pts · Availability

HTTP/2 403

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

8 record(s)
23.66.127.139
23.66.127.132
23.66.127.141
23.66.127.156
23.66.127.144
23.66.127.163
23.66.127.155
23.66.127.169

AAAA

2 record(s)
2600:1407:7400:5f::17d1:5ef3
2600:1407:7400:5f::17d1:5ee5

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
10 trivago-com.mail.protection.outlook.com.

TXT

21 record(s)
"1password-site-verification=JZVIW6WLTRGJDEE6EKZ4RQMDEM"
"_t318md42a8z77zv8ddbqex1er71vuc6"
"docusign=7352f0ac-a27f-441a-98e5-972d8e443cbf"
"cursor-domain-verification-p43pcp=qxlE46BZDVKAblyLzPXGnoQCM"
"00d1r000000fjumeai"
"siih8ljW=447938b58f212ee55fedfad4982d3ddd"
"v=spf1 ip4:194.153.186.220/32 ip6:2a0b:1300:0:dead:1::25/128 include:spf.protection.outlook.com include:_spf.trivago.com -all"
"protonmail-verification=b664fb6e795393f3d523dc4d4dbc97ba0f269ff3"
"anthropic-domain-verification-pcq65v=bqHpyqk4OyUGXMbuNwjemV4gw"
"workplace-domain-verification=gckxufsCaYKSsCTF0qpi4hLVqESj8N"
"docker-verification=d9a2fe33-d6d0-4407-ace8-ca5697eb5bdd"
"apple-domain-verification=uh8cVXHMQwaTsk1i"
"1password-site-verification=5SEDCKBBDJDN3PNQVXLF2RCQXU"
"google-site-verification=5-HKpUujDVU-2Xbwb0ajQlGCmNaZLYR6VO-EdxGrT8Q"
"v=MCPv1; k=ed25519; p=tV+iFjgGt524EWNtBPBfcloiCVg9V284kJHSTfD88H0="
"1password-site-verification=EPTMRKKDMJB4NNUYB75JR7R6KY"
"onetrust-domain-verification=e1eec2d525264d9a8eb941b82bb1372c"
"facebook-domain-verification=sjok2bexwgpv7b8lyylcx1rh0l93v2"
"google-site-verification=UMHGpjiz5sJbb6nakKs1_trtrcAzyiHIrlWQVcW4kv4"
"atlassian-domain-verification=2lciOX9dkr/VaL6sFK80OuY1ScKOJdSKc4Id2k0tDxcbgQTPr/BFazXuhcFXCzUp"
"ahrefs-site-verification_cea55d4f0605952573fb1074a2c70c3c8d12e8e1d620a5fd14e8c279946181c9"

NS

6 record(s)
a1-92.akam.net.
a5-66.akam.net.
a2-67.akam.net.
a22-64.akam.net.
a11-67.akam.net.
a24-64.akam.net.

SOA

1 record(s)
a1-92.akam.net. noc.trivago.net. 2026072802 43200 7200 2592000 43200

CAA

0 record(s)
—

Not configured

DS

0 record(s)
—

Not configured

DNSKEY

0 record(s)
—

Not configured

RRSIG

0 record(s)
—

Not configured

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 ip4:194.153.186.220/32 ip6:2a0b:1300:0:dead:1::25/128 include:spf.protection.outlook.com include:_spf.trivago.com -all

DMARC

Configured
v=DMARC1; p=none; pct=100; fo=1; ri=3600; rua=mailto:xiwyd5v7de6@inbox.eu.redsift.cloud,mailto:rua@trivago.com,mailto:rua@trivago.info; ruf=mailto:xiwyd5v7de6@inbox.eu.redsift.cloud,mailto:ruf@trivago.com

DKIM

Selector selector1
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoztBZ8q74z/B+YJ8SkwKEkVl799hbJLw2riUBQSD8l1A/+Qmc9h2lI6j7kcvLlE1Te9LrwZ8ybQcVSjQD7LBObnGYY/dd0GAg3XpsmszasH8mbKNO/9p4ZMscXQ3Tiq9CjFgJ72i/Jx+X67dAsF1FzXn1spI85Lk5pkXG5A9SoorVL245axmK+EVRcZsHRSU8xQ9OLi9XFkBlXZh/iNjF+SyfSl4doFdl/+apFJxE42cgybymtRDHZUkmb2iZEPWY9A6BtAEKpkg/3mMggKCgRJQ3nRITtpIpWbkm5in4+D58aK/vrkW/7bynrW5jiVAgvBoF/rlLowJ538/vYHdoQIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Access Denied
Description
Final URL
https://trivago.com/
HTTP status
403

HTTP

Status
HTTP/2 403
Final URL
https://trivago.com/
Version
3
Server
AkamaiGHost
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
DigiCert Inc
CN
*.trivago.com
Valid from
2025-11-16T18:00:00-06:00
Valid until
2026-12-18T17:59:59-06:00
Days remaining
130
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

1 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
—
X-Content-Type-OptionsNot detected
—
X-Frame-OptionsNot detected
—
Referrer PolicyNot detected
—
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

Review
!
Differences detected

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
23.66.127.136, 23.66.127.141, 23.66.127.144, 23.66.127.145, 23.66.127.147, 23.66.127.152, 23.66.127.153, 23.66.127.155
52,94 ms
Cloudflare
1.1.1.1
23.200.156.81, 23.200.156.83
32,93 ms
Quad9
9.9.9.9
23.201.195.21
39,12 ms
OpenDNS
208.67.222.222
23.66.127.132, 23.66.127.135, 23.66.127.137, 23.66.127.139, 23.66.127.141, 23.66.127.144, 23.66.127.147, 23.66.127.149
107,90 ms
AdGuard
94.140.14.14
23.44.111.12, 23.44.111.27
47,69 ms

IP, geolocation and ASNAssociated network information

23.66.127.139

No data
success
No
country
region
city
asn
organization
isp

23.66.127.132

No data
success
No
country
region
city
asn
organization
isp

23.66.127.141

No data
success
No
country
region
city
asn
organization
isp

23.66.127.156

No data
success
No
country
region
city
asn
organization
isp

Visitor information

Visitor
ip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No

SMTPEmail port connectivity

trivago-com.mail.protection.outlook.com

Port 25: Closed/unreachable - 1 ms - 
Port 465: Closed/unreachable - 4045.2 ms - 
Port 587: Closed/unreachable - 4043.7 ms -

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