ohwr.org

https://ohwr.org· First analyzed 15 May 2026· Updated 15 May 2026

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ohwr.org

Mobile

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Hosting Provider

GitHub Pages

pages.github.com

IP Address

185.199.111.153

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 San Francisco, United States

ASN

AS54113

Organization

GitHub, Inc

Server

GitHub.com

CDN

Fastly

Nameservers

ext-dns-2.cern.ch.ext-dns-1.cern.ch.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

384 ms10%

Speed Index

499 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

91 KB

10 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

JAMstack

⚡ SSG

Frontend

Framework

Hugov0.147.2

Infrastructure

Platform

GitHub Pages

CDN

Fastly

Technology Stack

6 Technologies Detected

Analytics

CSS Frameworks

Icon Libraries

Fonts

Customer Support

SEO Analysis

D47/100

Meta Tags4/15

Content5/12

Headings0/8

Technical14/21

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social3/5

Freshness0/4

Mobile4/4

Indexability3/3

ohwr.orgohwr.org

Open Hardware Repository

No description available for this page.

Title Length24 chars

Recommended: 50-60 chars (~152px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1

9 issues found

Upgrade to view details

Local SEO

Local Search Readiness

3/100

Poor

1 14 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

F31/100

Bot Access

20/25

Machine Read.

1/25

Schema Data

0/25

Citation

10/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:0%

Words:67

Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph1/3

Twitter Card2/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

AI readiness recommendation preview...

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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.

69/100

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

7/15

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

11/15

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

ARIA & Roles

4/15

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

4 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.

72/100

A+

11 mg

CO₂e / view

90.6 KB

Page Weight

95%

Cleaner Than

New Visitor

13 mg

Returning (cached)

6 mg

Annual (10K/mo)

1.3 kg

Emission Segments

Data Center

3 mg

Network

3 mg

Device

6 mg

Resource Breakdown

JavaScript

9.5 KB

Fonts

675 B

HTML

80.5 KB

Green Hosting Not Verified

GitHub Pages

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

49d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

05.04.2026

Valid Until

04.07.2026

Subject Alternative Names (2)

ohwr.orgwww.ohwr.org

SHA-256 Fingerprint

7A:CC:CA:E0:2C:51:A8:D0:68:5B:65:A2:35:A0:91:30:58:EE:B9:43...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

access-control-allow-origin

age

cache-control

🟡 600s(max-age=600)

content-encoding

📦 Gzip(gzip)

content-length

82088

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

ohwr.org

Domain Age

17y 1m

Created

17.04.2009

Expires

17.04.2029

Last Updated

12.05.2026

Registrar

Dinahosting s.l.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

75/100

Mobile Friendly60 breakpoints

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,maximum-scale=5

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

lato

WCAG Partial

69/100

Readability

/30

22/30

16px · LH 1.70

Hierarchy

/20

10/20

WCAG

/25

19/25

2.52:1 min contrast

Performance

/25

18/25

1 font · 1 req

Heading Font

lato

Body Font

lato

Sans16px

Contrast Ratio

2.52:1

2 issues

Reading Comfort

Single Family

left aligned

16px

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

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 2.5:1).

✅ Lean font stack: 1 font families keeps load times fast.

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

GGoogle Fonts

Color Palette

5 unique colors

Light

#ffffff

Primary· 96.00000000000001%

#70b778

Secondary· 1.3%

#edf1ef

Secondary· 0.9%

#928f5f

Secondary· 0.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

6 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(1)cdn.jsdelivr.net(1)

Website Identity

ohwr.org

17 years old

Location detected: 🇺🇸 United Statesvia ip

Dinahosting s.l.en

Social Profiles

GitHub

Sponsored

Last analyzed: 15 May 2026 at 20:16

Historical Analysis & Change Tracking