What technology does tumblr.com use?

tumblr.com is built with WordPress, Google Ads, Nginx.

Is tumblr.com secure (HTTPS)?

Yes. tumblr.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 7, 2026.

Who hosts tumblr.com?

tumblr.com is hosted on AUTOMATTIC - Automattic, Inc, US.

What is tumblr.com's SEO score?

tumblr.com scored 80/100 for SEO in the latest analysis (great).

What is tumblr.com's overall website score?

tumblr.com has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.

Is tumblr.com hiring?

Yes. tumblr.com has 3 open roles listed on their careers page.

tumblr.com

Tumblr

Last scanned Jul 14, 2026, 1:28 PM

Overall score

Excellent

Summary

This website uses WordPress hosted on AUTOMATTIC - Automattic, Inc, US. SEO is good (80/100) and accessibility is excellent (90/100). Security scores excellent (100/100) and performance excellent (90/100). Top issue: No H1 heading found.

SEO

2 issue(s) found

Performance

277 ms

100

Security

HTTPS & header checks

Accessibility

1 issue(s) found

Meta tags

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.
Canonical: https://www.tumblr.com/explore/trending
Language: en-US
Charset: utf-8
Viewport: width=device-width, initial-scale=1
Robots meta
Manifest: https://www.tumblr.com/manifest.json

Technologies

Detected frameworks, languages, and tools.

WordPress Google Ads Nginx

Hosting & CDN

Hosting provider: AUTOMATTIC - Automattic, Inc, US
CDN provider: —
IP address: 192.0.77.40
ASN: AS2635 (AUTOMATTIC - Automattic, Inc, US)

DNS records

Type	Value
A	192.0.77.40
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: tumblr.com
Valid from: Jul 9, 2026
Valid to: Oct 7, 2026
Days until expiry: 85
SAN domains: *.tumblr.com, tumblr.com

Security headers

Strict-Transport-SecurityEnabled
Content-Security-PolicyEnabled
X-Frame-OptionsEnabled
X-Content-Type-OptionsEnabled
Referrer-PolicyMissing
Permissions-PolicyMissing

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 0 · H3 0

Links

10 internal · 4 external · 3 broken

Images

0 total · 0 missing alt

Scripts / Styles

6 scripts · 2 stylesheets

JS / CSS size

92.4 KB · 682 KB

Page size

115 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 114
sitemap.xml: Found
URLs in sitemap: -1

SEO issues

No H1 heading found
No structured data (JSON-LD) found

Careers

View careers page

Role	Location	Posted
Log in	—	—
Sign up	—	—
Justin Ouellette	—	—

Scan details

Requested URL: https://tumblr.com
Final URL: https://www.tumblr.com/
HTTP status: 200
HTTP version: HTTP/2
Response time: 275 ms
HTML size: 115 KB
Redirect chain: https://tumblr.com → https://www.tumblr.com/

Frequently asked questions

What technology does tumblr.com use?: tumblr.com is built with WordPress, Google Ads, Nginx.
Is tumblr.com secure (HTTPS)?: Yes. tumblr.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 7, 2026.
Who hosts tumblr.com?: tumblr.com is hosted on AUTOMATTIC - Automattic, Inc, US.
What is tumblr.com's SEO score?: tumblr.com scored 80/100 for SEO in the latest analysis (great).
What is tumblr.com's overall website score?: tumblr.com has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
Is tumblr.com hiring?: Yes. tumblr.com has 3 open roles listed on their careers page.