tmblr.co

https://tmblr.co· First analyzed 30 Apr 2026· Updated 30 Apr 2026

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tmblr.co

Mobile

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

78/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

12/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

15/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

15/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

9/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

7/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

2 recommendations

•Accessibility recommendation preview...

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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

71/100

A+

19 mg

CO₂e / view

154.0 KB

Page Weight

95%

Cleaner Than

New Visitor

22 mg

Returning (cached)

11 mg

Annual (10K/mo)

2.3 kg

Emission Segments

Data Center

4 mg

Network

5 mg

Device

10 mg

Resource Breakdown

JavaScript

5.4 KB

Images

15.6 KB

CSS

109.8 KB

HTML

23.2 KB

Green Hosting Not Verified

TUMBLR, INC

2 recommendations

•Carbon footprint recommendation preview...

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Security Score

76%Good

Interactive

HTTPS

No WAF

38d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

10.03.2026

Valid Until

08.06.2026

Subject Alternative Names (2)

*.tumblr.comtumblr.com

SHA-256 Fingerprint

10:F2:A5:51:21:14:FF:73:83:A1:AF:33:EC:0C:8F:E2:8C:4E:EE:2B...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cache-control

🟡 0s(public, max-age=0, s-maxage=60, must-revalidate)

content-encoding

⚡ Brotli(br)

content-security-policy

script-src 'self' 'unsafe-eval' 'unsafe-inline' https://www....

content-type

text/html; charset=utf-8

date

Thu, 30 Apr 2026 19:54:06 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

Domain Information

tmblr.co

DNSSEC

Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner

Quantcast Choice

GDPR Indicators

Cookie consent banner detected

CMP: Quantcast Choice

Data Protection Officer mentioned

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

64/100

Mobile Friendly1 breakpoint

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width, initial-scale=1

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Favorit + Helvetica Neue

WCAG AA

69/100

Readability

/30

18/30

16px · LH 1.00

Hierarchy

/20

10/20

WCAG

/25

22/25

6.12:1 min contrast

Performance

/25

19/25

System fonts

Heading Font

Favorit

Body Font

Helvetica Neue

Sans16px

Contrast Ratio

6.12:1

WCAG AA (≥4.5:1)

Reading Comfort

Mixed Pairing

left aligned

✅ Excellent readability: 16px body text is ideal for all devices.

⚠️ Tight line spacing (1.00). Increase to 1.4–1.6 for better readability.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.1:1).

✅ System fonts: Zero font loading delay — best possible LCP impact.

Color Palette

5 unique colors

Light

#001a35

Accent· 97.4%

#3c5b75

Secondary· 1.1%

#00b8fe

Primary· 0.8%

#162f4a

Accent· 0.5%

#5ab2d7

Accent· 0.2%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

tmblr.co

Location detected: 🇺🇸 United Statesvia ip

en-US

tmblr.co

Trending topics on Tumblr

Accessibility

Carbon Footprint

Mobile Compatibility

Color Palette

tmblr.co