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Total

DNS

Email

Security

Network

100

Availability

Domaintumblr.com

IPv41

IPv60

MX records5

StatusActive

Domain technical report

Tumblr

tumblr.com

Tumblr is the place you go to be yourself on the internet. No performance, no perfection. Just you, and the people who get it.

Generated: 2026-08-08T17:04:26-05:00 · Cached result

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IPv41

IPv60

MX5

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

5 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

59 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 DNS30 / 30 pts · Network

PTR: assets.tumblr.com

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)

192.0.77.40

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

5 record(s)

10 aspmx2.googlemail.com.
1 aspmx.l.google.com.
5 alt1.aspmx.l.google.com.
5 alt2.aspmx.l.google.com.
10 aspmx3.googlemail.com.

TXT

15 record(s)

"yahoo-verification-key=+HOWRlDLIp3tUwSLvdfWrcKzs6tWS/LkZFYp8XGzC6k="
"google-site-verification=p3225uNj2Zmz4RRSuvITsVPAlTsPcdN0JAm8QJ5sii4"
"atlassian-domain-verification=HLvi8VknRfLwuOZ7TmiaKM8GgOgai45SxxeWZddVaOBMgWielcwit/LmLXXPJm6G"
"google-site-verification=49CbL4sd1lOCXXoGx4wSFD87B5_Py3QGacMNlrWK4Tw"
"docusign=89f952a7-e765-4f50-a3d7-9de3cd65cac4"
"google-site-verification=CnMcqJES0ObJWvPivA5DBJFXKOryg0I9rA5JPro-Sdc"
"mailru-verification: c8b795f0ae1cbc3f"
"wtcg10h9bh0nrxglf6zc3p8mxy5t3mw9"
"dropbox-domain-verification=gsvpgz511vsp"
"google-site-verification=juLeQVndZxEsqhKFQS09fSxOZ3d2Jx2BWZqaLXakugw"
"896862773-6204718"
"google-site-verification=evUIJKvsT_rKVFCun0dPbCRHgQqDz1L3f36AjHyVuL4"
"f050f00fa3c941ea9ee3f76fc6562a11"
"figma-domain-verification=a2e41510ac6b0c5745595c76770385bfd602709c6d04e80ef830c9c482fc9e20-1768211767"
"v=spf1 include:_spf.google.com include:_spf.automattic.com include:sendgrid.net include:mail.zendesk.com include:21055259.spf05.hubspotemail.net -all"

NS

4 record(s)

ns3.tumblr.com.
ns4.tumblr.com.
ns2.tumblr.com.
ns1.tumblr.com.

SOA

1 record(s)

ns1.tumblr.com. hostmaster.tumblr.com. 2026061601 10800 3600 604800 3600

CAA

5 record(s)

0 issue "pki.goog"
0 issue "comodoca.com"
0 issue "digicert.com"
0 issue "letsencrypt.org"
0 iodef "mailto:content-delivery+caa@tumblr.com"

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:_spf.google.com include:_spf.automattic.com include:sendgrid.net include:mail.zendesk.com include:21055259.spf05.hubspotemail.net -all

DMARC

Configured

v=DMARC1; p=quarantine; pct=100; rua=mailto:0bqp2jnw@ag.dmarcian.com; ruf=mailto:0bqp2jnw@fr.dmarcian.com;

DKIM

Selector google

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDKJlUg8PMvui+/SPK5DI6LgyUzXskaFG8X9Bib5e3PU1MURYrRpYFdrQckVpKMHELoNKbQ8/GyyZX1qdNcPpjMCqENGx+2G4VkeuvZWEHdsl0HV1oTq8GuOduZ2dRFwcQb74DiKttlQUcVvbnyO3JIl0xqHtW6E9l0brlMpBmuJwIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Tumblr

Description

Tumblr is the place you go to be yourself on the internet. No performance, no perfection. Just you, and the people who get it.

Final URL

https://www.tumblr.com/

HTTP status

200

HTTP

Status

HTTP/2 200

Final URL

https://www.tumblr.com/

Version

Server

nginx

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Let's Encrypt

tumblr.com

Valid from

2026-07-09T14:44:19-05:00

Valid until

2026-10-07T14:44:18-05:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_128_GCM_SHA256

Security headers

4 active

✓

HSTSImplemented

✓

Content Security PolicyImplemented

✓

X-Content-Type-OptionsImplemented

✓

X-Frame-OptionsImplemented

—

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

Consistent

✓

Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

192.0.77.40

52,18 ms

Cloudflare

1.1.1.1

192.0.77.40

26,12 ms

Quad9

9.9.9.9

192.0.77.40

50,94 ms

OpenDNS

208.67.222.222

192.0.77.40

52,11 ms

AdGuard

94.140.14.14

192.0.77.40

65,81 ms

IP, geolocation and ASNAssociated network information

192.0.77.40

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

aspmx2.googlemail.com

Port 25: Closed/unreachable - 1.3 ms - 
Port 465: Closed/unreachable - 4005.3 ms - 
Port 587: Closed/unreachable - 4017.5 ms -

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