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Total

DNS

100

Email

Security

Network

Availability

Domainrealvnc.com

IPv41

IPv60

MX records1

StatusActive

Domain technical report

Error 403 Forbidden

realvnc.com

Generated: 2026-08-09T18:44:38-05:00 · Cached result

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IPv41

IPv60

MX1

NS4

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

4 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 policy5 / 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-STS5 / 5 pts · Mail

Mail transport policy.

✓

TLS-RPT5 / 5 pts · Mail

TLS reporting policy.

✓

Valid TLS certificate55 / 55 pts · Security

73 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 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

1 record(s)

162.159.135.42

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

1 record(s)

0 realvnc-com.mail.protection.outlook.com.

TXT

15 record(s)

"asv=309ccc5adc09d2464ac2665e9974075c"
"v=spf1 include:spf1.realvnc.com mx a ip4:85.118.25.224/28 ip4:64.253.40.208/28 ip4:146.101.15.112/28 ip4:146.101.60.64/29 ip4:146.101.60.80/29 ip4:146.101.16.120/29 ip4:93.89.140.48/28 include:mail.zendesk.com -all"
"google-site-verification=8R_EB8SYuQWmxdEKJXObSq5BMXuZM2WXwT1uNZGMeOA"
"google-site-verification=sinri451xxlUIP8XWzq2cnLcose6D3rZtQoTjN22urg"
"atlassian-domain-verification=rslHtzOI5sqZJkCLg1ZQjp0qtLMeJMmphVrMsb925dxb2QQVv7atnG23AoAnAUSx"
"apple-domain-verification=C1oCsNHCV8WFlmUQ"
"pmpI7p6"
"access-domain-verification=c9c536439a4535e8d8dffbcb8abdeaa71e9e799dcd926e0ee962c98bc1061033"
"figma-domain-verification=4e46cf4c9d9aaec25262e168b0999452d5500da424414abfb1798c4fe9233e61-1771502323"
"google-site-verification=1I3HJkpW6bKhSSPJBqQL0R8R2agif2aAwy-QsQl9Xe0"
"Z9jkaFYlj+FbMMAK6DLQAWsT6FnAfMtRTL6T+BUM/mplV6PYR7mVhRL2nOm1DsZK2b2gv9PMa5XUVjwtcc5q9A=="
"openai-domain-verification=dv-WWEnkwoxDzw6l2qb8mJXwuYh"
"bw=tsczM6ieOZ17wC3dKOHNMGYejzemjsd8DGyziHuAFUdK"
"google-site-verification=VqytxEFfE2GGlJ_wNobagFkF_nWWGAaBalXVwGBq4Yg"
"anthropic-domain-verification-wk26mc=QzCmNWzkRB3fh4mHpDBWe2FdT"

NS

4 record(s)

ns-107.awsdns-13.com.
ns-697.awsdns-23.net.
ns-1126.awsdns-12.org.
ns-1853.awsdns-39.co.uk.

SOA

1 record(s)

ns-107.awsdns-13.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400

CAA

13 record(s)

0 issue "symantec.com"
0 issuewild "sectigo.com"
0 issuewild "pki.goog"
0 issuewild "digicert.com"
0 issue "sectigo.com"
0 issuewild "letsencrypt.org"
0 issuewild "amazon.com"
0 issue "amazon.com"
0 issue "pki.goog"
0 issue "digicert.com"
0 issuewild "symantec.com"
0 iodef "mailto:sslcerts@realvnc.com"
0 issue "letsencrypt.org"

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 include:spf1.realvnc.com mx a ip4:85.118.25.224/28 ip4:64.253.40.208/28 ip4:146.101.15.112/28 ip4:146.101.60.64/29 ip4:146.101.60.80/29 ip4:146.101.16.120/29 ip4:93.89.140.48/28 include:mail.zendesk.com -all

DMARC

Configured

v=DMARC1; p=reject; ruf=mailto:dmarcfail@realvnc.com; rua=mailto:dmarcrep@realvnc.com; adkim=r; aspf=r; fo=1

DKIM

Selector selector1

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCpFzOwoD7uGCInK+/TQn+VJq0A1vWIBaFXxCDfwEjKyrrQ1Zhc0VhVE7LG92hNvYZTLbGJQaKEo1WxcmtXdHtMdNqK/qoXMXMUpB+XF+d4yqp3iLH4AjM+hHiVP2T8BQH6EiYHVOcwoSO9N9h6ItiBfIV0uFhDh5NpMdhsOawUTwIDAQAB; n=1024,1501716860,1517614460

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Error 403 Forbidden

Description

Final URL

https://realvnc.com/

HTTP status

403

HTTP

Status

HTTP/2 403

Final URL

https://realvnc.com/

Version

Server

cloudflare

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Google Trust Services

realvnc.com

Valid from

2026-07-24T01:33:09-05:00

Valid until

2026-10-22T02:33:08-05:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

Security headers

4 active

—

HSTSNot detected

✓

Content Security PolicyImplemented

✓

X-Content-Type-OptionsImplemented

✓

X-Frame-OptionsImplemented

✓

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

162.159.135.42

50,77 ms

Cloudflare

1.1.1.1

162.159.135.42

46,14 ms

Quad9

9.9.9.9

162.159.135.42

48,30 ms

OpenDNS

208.67.222.222

162.159.135.42

100,79 ms

AdGuard

94.140.14.14

162.159.135.42

78,68 ms

IP, geolocation and ASNAssociated network information

162.159.135.42

Identified

success

Yes

country

United States

country_code

region

California

city

San Francisco

latitude

37.7749113

longitude

-122.4185412

asn

13335

organization

Cloudflare, Inc.

isp

Cloudflare, Inc.

timezone

America/Los_Angeles

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

realvnc-com.mail.protection.outlook.com

Port 25: Closed/unreachable - 19.7 ms - 
Port 465: Closed/unreachable - 4047.9 ms - 
Port 587: Closed/unreachable - 4021.3 ms -

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