Analyze any domain

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

Total

DNS

Email

Security

Network

100

Availability

Domainheathrow.com

IPv42

IPv60

MX records1

StatusActive

Domain technical report

Heathrow: Welcome to Heathrow Airport | Heathrow

heathrow.com

Heathrow is the UK’s biggest airport, located 14 miles west of Central London and serving hundreds of destinations around the world.

Generated: 2026-08-10T14:53:53-05:00 · Cached result

JSON CSV PDF Visit site

IPv42

IPv60

MX1

NS6

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

2 IPv4 address(es) detected.

IPv6 (AAAA)0 / 10 pts · Dns

0 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 propagation10 / 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

109 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers23 / 35 pts · Security

6 of 9 evaluated headers detected.

PTR reverse DNS0 / 30 pts · Network

PTR not detected.

✓

IPv4 diversity35 / 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

2 record(s)

20.101.251.73
20.123.127.245

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

1 record(s)

0 heathrow-com.mail.protection.outlook.com.

TXT

22 record(s)

"hpe-greenlake-domain-verification=52436862694f6b54494c543544655655384d4875716847354e6d644378393642"
"MS=ms31385712"
"docusign=f78b1ebb-6971-4f32-9b24-658c16ac521b"
"stripe-verification=1C031C0781E3008372AA73701DBF2E4F36168BA9FB0665002686B0695FF952C7"
"_2ce7jxxufr51ui07q0220jvnb044k59"
"cloudflare_dashboard_sso=59e5ff04972dac33d70f67c37f835bd0"
"miro-verification=ddde9a5b917ee65f25518cfbd9f4bcadb4564762"
"have-i-been-pwned-verification=07ba16d651a30d318b05f5c561014637"
"v=spf1 include:spf.protection.outlook.com ip4:52.73.255.192/26 ip4:52.200.60.192/26 ip4:18.232.1.16/28 ip4:5.44.24.238 ip4:5.44.24.239 ip4:208.77.221.103 ip4:208.77.221.104 ip4:64.94.12.128/25 ip4:85.236.133.0/25 ip4:5.61.115.80/28 ip4:5.61.115.48/28 ip4:" "208.185.229.0/24 ip4:208.185.235.0/24 ip4:148.59.108.0/23 ip4:148.59.106.0/23 ip4:148.59.107.25 ip4:148.59.109.25 ip4:52.73.255.192/26 ip4:52.200.60.192/26 ip4:18.232.1.16/28 include:_spf.google.com ip4:83.138.165.68/31 ip4:212.100.250.11 ip4:37.188.101.8" "0/28 ip4:212.100.250.16/29 ip4:95.154.198.192/26 ip4:96.9.165.136/29 ip4:54.225.115.81 ip4:34.236.34.117 ip4:35.178.83.41 ip4:5.172.153.128/25 ip4:54.225.115.81/32 ip4:34.236.34.117/32 ip4:35.178.83.41/32  ip4:141.146.165.0/27 ip4:199.255.192.0/22 ip4:199" ".127.232.0/22 ip4:54.240.0.0/18 ip4:69.169.224.0/20 ip4:76.223.180.0/23 ip4:76.223.188.0/24 ip4:76.223.189.0/24 ip4:76.223.190.0/24 ip4:192.161.144.0/20 ip4:185.12.80.0/22 ip4:96.46.150.192/27 ip4:174.137.46.0/24 ip4:188.172.128.0/20 ip4:216.198.0.0/18 ip" "4:54.240.63.0/25 ip4:54.240.40.0/25 ip4:54.240.56.128/26 ip4:23.253.182.103 ip4:23.253.183.145 ip4:23.253.183.146 ip4:23.253.183.147 ip4:23.253.183.148 ip4:23.253.183.150 ip4:166.78.68.221 ip4:166.78.69.146 ip4:167.89.46.159 ip4:167.89.64.9 ip4:167.89.65." "0/24 ip4:167.89.65.53 ip4:167.89.65.100 ip4:167.89.74.0/24 include:_spf.salesforce.com include:spf.mandrillapp.com include:spf_c.oracle.com -all"
"00d4k000005n2fwuas"
"neat-pulse-domain-verification-Vvrp63M=b40b0653-c274-49b8-8096-8c458dea1c52"
"asvdns_fdfbdb53-06ee-46d3-b60a-7be2a1865b9b"
"facebook-domain-verification=w6mxtczvdltzm699ylrnz06j2ii6i3"
"_asvdns-28343ac0-617d-44f4-8575-f8121978378e"
"have-i-been-pwned-verification=ce2010b7cb2c6e4b491b9049d93ca6a3"
"v=msv1 t=F0C323E5-F2BF-4F2F-A668-65E79DC0DEE3"
"apple-domain-verification=eJH55XZ9am3iSq91"
"google-site-verification=FT7FA_jb6ilvLMb4IzWBSp503tAbeeYP0rqLAGKxZKQ"
"docusign=283111b4-81f9-4ea0-89ec-cccfae4dd1b1"
"xa7skMyZUUSXEdM9w3T4+Xw08Qpd7NglBADRjm/pyDoyijyyxq8YvOKTVPeV9EvmGEfHzYH0olJhnhNJ2+KiRQ=="
"v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J/mRwSRMAocV/hMB3jXwaHH36d9NaVynQFYV8NaWi69c1veUtRzGt7yAioXqLj7Z4TeEUoOLgrKsn8YnckGs9i3B3tVFB+Ch/4mPhXWiNfNdynHWBcPcbJ8kjEQ2U8y78dHZj1YeRXXVvWob2OaKynO8/lQIDAQAB;"
"MS=ms78918332"

NS

6 record(s)

ns6.netnames.net.
ns8.netnames.net.
ns2.netnames.net.
ns7.netnames.net.
ns5.netnames.net.
ns1.netnames.net.

SOA

1 record(s)

ns1.netnames.net. hostmaster.cscdns.net. 2018073307 10800 1800 3600000 300

SPF

Configured

v=spf1 include:spf.protection.outlook.com ip4:52.73.255.192/26 ip4:52.200.60.192/26 ip4:18.232.1.16/28 ip4:5.44.24.238 ip4:5.44.24.239 ip4:208.77.221.103 ip4:208.77.221.104 ip4:64.94.12.128/25 ip4:85.236.133.0/25 ip4:5.61.115.80/28 ip4:5.61.115.48/28 ip4:208.185.229.0/24 ip4:208.185.235.0/24 ip4:148.59.108.0/23 ip4:148.59.106.0/23 ip4:148.59.107.25 ip4:148.59.109.25 ip4:52.73.255.192/26 ip4:52.200.60.192/26 ip4:18.232.1.16/28 include:_spf.google.com ip4:83.138.165.68/31 ip4:212.100.250.11 ip4:37.188.101.80/28 ip4:212.100.250.16/29 ip4:95.154.198.192/26 ip4:96.9.165.136/29 ip4:54.225.115.81 ip4:34.236.34.117 ip4:35.178.83.41 ip4:5.172.153.128/25 ip4:54.225.115.81/32 ip4:34.236.34.117/32 ip4:35.178.83.41/32  ip4:141.146.165.0/27 ip4:199.255.192.0/22 ip4:199.127.232.0/22 ip4:54.240.0.0/18 ip4:69.169.224.0/20 ip4:76.223.180.0/23 ip4:76.223.188.0/24 ip4:76.223.189.0/24 ip4:76.223.190.0/24 ip4:192.161.144.0/20 ip4:185.12.80.0/22 ip4:96.46.150.192/27 ip4:174.137.46.0/24 ip4:188.172.128.0/20 ip4:216.198.0.0/18 ip4:54.240.63.0/25 ip4:54.240.40.0/25 ip4:54.240.56.128/26 ip4:23.253.182.103 ip4:23.253.183.145 ip4:23.253.183.146 ip4:23.253.183.147 ip4:23.253.183.148 ip4:23.253.183.150 ip4:166.78.68.221 ip4:166.78.69.146 ip4:167.89.46.159 ip4:167.89.64.9 ip4:167.89.65.0/24 ip4:167.89.65.53 ip4:167.89.65.100 ip4:167.89.74.0/24 include:_spf.salesforce.com include:spf.mandrillapp.com include:spf_c.oracle.com -all

DMARC

Configured

v=DMARC1;p=reject;rua=mailto:heathrow@rua.netcraft.com;ruf=mailto:heathrow@ruf.netcraft.com;sp=reject;ri=300

DKIM

Selector google

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDVF4cnWcMNbHiPzUt/oFNX1IQYO238AhZDtDJsvX3wknRwrSBH3nPuUS7LyfujJnlRkCbh4X5Z3L9ap3aVihIeIJeEkOEBaPpBr9vhJS9CM/KAhTgS5Cn+G3rlzGhO0wxbkaisBzGAjmfUsak1jUzn4brrGM4Kl25yFKYrN9n6pQIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Heathrow: Welcome to Heathrow Airport | Heathrow

Description

Heathrow is the UK’s biggest airport, located 14 miles west of Central London and serving hundreds of destinations around the world.

Final URL

https://www.heathrow.com/

HTTP status

206

HTTP

Status

HTTP/2 200

Final URL

https://www.heathrow.com/

Version

Server

Microsoft-Azure-Application-Gateway/v2

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

DigiCert Inc

www.heathrow.com

Valid from

2026-05-26T19:00:00-05:00

Valid until

2026-11-27T17:59:59-06:00

Days remaining

109

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

Security headers

6 active

✓

HSTSImplemented

✓

Content Security PolicyImplemented

✓

X-Content-Type-OptionsImplemented

—

X-Frame-OptionsNot detected

✓

Referrer PolicyImplemented

✓

Permissions PolicyImplemented

—

Cross-Origin-Opener-PolicyNot detected

—

Cross-Origin-Embedder-PolicyNot detected

✓

Cross-Origin-Resource-PolicyImplemented

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent

✓

Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

20.101.251.73, 20.123.127.245

86,62 ms

Cloudflare

1.1.1.1

20.101.251.73, 20.123.127.245

105,56 ms

Quad9

9.9.9.9

20.101.251.73, 20.123.127.245

73,44 ms

OpenDNS

208.67.222.222

20.101.251.73, 20.123.127.245

33,42 ms

AdGuard

94.140.14.14

20.101.251.73, 20.123.127.245

73,02 ms

IP, geolocation and ASNAssociated network information

20.101.251.73

No data

success

country

region

city

asn

organization

isp

20.123.127.245

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

heathrow-com.mail.protection.outlook.com

Port 25: Closed/unreachable - 104.8 ms - 
Port 465: Closed/unreachable - 4051.8 ms - 
Port 587: Closed/unreachable - 4024 ms -

Recently analyzed domains

View all →

gsa.gov95 go.id15 chiba.jp4 www.news.bbc.co.uk4 bc.ca4 imyfone.com75 active24.cz95 optusnet.com.au46 amazonaws.com78 businessfrance.fr96