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libressl.org

https://libressl.org· First analyzed 08 May 2026· Updated 08 May 2026
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libressl.org
Desktop screenshot of libressl.org
Mobile screenshot of libressl.org
Mobile

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Hosting Provider

IP Address

199.185.178.80

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Calgary, Canada

ASN

AS22512

Organization

Rasselas

Server

OpenBSD httpd

Nameservers

b.ns.bsws.de.c.ns.bsws.de.ns6.gandi.net.t1.obtuse.com.+2 more

Performance

100

Core Web Vitals

Weight

First Contentful Paint
524 ms10%
Speed Index
681 ms10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
27 KB
3 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Rasselas

SEO Analysis

D45/100
13
7
2
Meta Tags5/15
Content8/12
Headings0/8
Technical11/21
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
L
libressl.orglibressl.org

LibreSSL

the main LibreSSL page

Title Length8 chars

Recommended: 50-60 chars (~47px / 580px)

Description Length22 chars

Recommended: 120-160 chars

Issues (2)

  • Missing H1 tag — every page should have exactly one H1
  • Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

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.

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AI & LLM Readiness

F35/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
8/25

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
nav
Text ratio:38%
Words:172
Token eff.:Too Short
Sections/1K:5.8
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary27w
Descriptive Headings
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
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.
B
73/100
9
Passed
3
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
13/20
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
1/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 recommendations
  • Accessibility recommendation preview...

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.
52/100
A+
3 mg
CO₂e / view
26.9 KB
Page Weight
95%
Cleaner Than
New Visitor
4 mg
vs
Returning (cached)
2 mg
Annual (10K/mo)
396 g
Emission Segments
Data Center
<0.001 g
Network
<0.001 g
Device
2 mg
Resource Breakdown
Images
19.1 KB
CSS
4.7 KB
HTML
3.1 KB
Green Hosting Not Verified
Rasselas
5 recommendations
  • Carbon footprint recommendation preview...
B

Security Score

71%Good
Static / Informational

HTTPS

No WAF

79d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

27.04.2026

Valid Until

26.07.2026

Subject Alternative Names (12)

ftplist1.openbsd.orglibressl.orgopenbsd.orgopeniked.orgopenssh.comopenssh.orgwww.libressl.orgwww.openbsd.org+4 more

SHA-256 Fingerprint

53:4D:07:A2:70:99:E8:A9:03:36:3E:D5:D9:C9:AA:DC:A3:75:93:5A...

Recommendations

Security recommendation preview

HTTP Headers

Developer Console

connection
keep-alive
content-length
2897
content-type
text/html
date
Fri, 08 May 2026 05:38:29 GMT
last-modified
Sun, 19 Apr 2026 01:51:06 GMT
server
OpenBSD httpd
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

libressl.org

Domain Age
12 years

Created

11.04.2014

Expires

11.04.2027

Last Updated

31.03.2026

Registrar

Gandi SAS

DNSSEC
Not Enabled

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.
F
37/100
Not Mobile Friendly
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.
4 recommendations
  • Mobile compatibility recommendation preview...

Typography & Readability

Times New Roman

WCAG AA
67/100
Readability
/30
24/30

16px · LH --

Hierarchy
/20
7/20
WCAG
/25
22/25

5.8:1 min contrast

Performance
/25
14/25

1 font

Heading Font

Times New Roman

Serif

Body Font

Times New Roman

Serif16px

Contrast Ratio

5.8:1

WCAG AA (≥4.5:1)

Reading Comfort

~68 CPL

Optimal (45–75)
24px
h2
16px
p

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

✅ Optimal line length: ~68 chars/line (ideal 45–75 CPL).

⚠️ Hard to read: Flesch score 42/100. Simplify sentences for wider reach.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.8:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

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

Color Palette

7 unique colors
15.67:1 AAA Light
#ffffff
Background· 76.19999999999997%
#212422
Other· 2%
#6bbdd5
Primary· 10.7%
#538292
Secondary· 2.6%
#74aac0
Secondary· 0.7%

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Scripts & Styles

1 Resources

0
Scripts
1
Styles
0
Async
0
Defer

Top Script Sources

Website Identity

libressl.org

12 years old
Location detected: 🇨🇦 Canadavia ip
Gandi SASen

Social Profiles

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Last analyzed: 08 May 2026 at 05:38

Historical Analysis & Change Tracking