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asciidoctor.org

https://asciidoctor.org· First analyzed 01 May 2026· Updated 01 May 2026
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asciidoctor.org
Desktop screenshot of asciidoctor.org
Mobile screenshot of asciidoctor.org
Mobile

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Hosting Provider

Google Cloud Platform
cloud.google.com

IP Address

104.198.14.52

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 The Dalles, United States

ASN

AS396982

Organization

Google Cloud (us-west1)

Server

Netlify

Nameservers

ns-1-a.gandi.net.ns-123-c.gandi.net.ns-35-b.gandi.net.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
794 ms10%
Speed Index
1.0 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
306 KB
12 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Platform
Netlify

Technology Stack

5 Technologies Detected

CSS Frameworks

2
Tailwind CSS
Foundation

Other

1
Modernizr

Icon Libraries

1
Font Awesome

Platforms

1
Netlify

SEO Analysis

C61/100
17
7
1
Meta Tags9/15
Content12/12
Headings6/8
Technical13/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
A
asciidoctor.orgasciidoctor.org

Asciidoctor | A fast, open source text processor and publishing too...

A comprehensive and user-friendly publishing toolchain for the AsciiDoc writing format. Converts AsciiDoc to HTML5, DocBook, PDF, and other formats.

Title truncated.
Title Length148 chars

Recommended: 50-60 chars (~888px / 580px)

Description Length148 chars

Recommended: 120-160 chars

Issues (1)

  • • Title is too long (148 chars, ~888px). Will be truncated in search results.

8 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

1 rules

Allows all crawlers

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

D46/100
Bot Access
20/25
Machine Read.
17/25
Schema Data
0/25
Citation
9/25

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
blockquotescode blocksdef. listsnavheader/footer
Text ratio:42%
Words:2,490
Token eff.:Optimal
Sections/1K:11.2
Depth:5/5

Structured Data

No Schema

Citation Readiness

Opening Summary15w
Descriptive Headingsavg 1.9w
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...
Upgrade to view recommendations

Sponsored

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
78/100
10
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
18/20
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.
1 recommendation
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
75/100
A+
31 mg
CO₂e / view
306.4 KB
Page Weight
90%
Cleaner Than
New Visitor
35 mg
vs
Returning (cached)
18 mg
Annual (10K/mo)
3.7 kg
Emission Segments
Data Center
2 mg
Network
9 mg
Device
20 mg
Resource Breakdown
JavaScript
27.3 KB
Images
151.4 KB
CSS
118.6 KB
HTML
9.2 KB
Green Hosting Verified
Google Cloud
GWF Verified
2 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

76%Good
Static / Informational

HTTPS

No WAF

78d

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

Valid From

20.04.2026

Valid Until

19.07.2026

Subject Alternative Names (2)

asciidoctor.orgwww.asciidoctor.org

SHA-256 Fingerprint

80:DF:F0:A2:5D:88:B5:7F:23:FD:71:3A:6E:38:49:2C:91:D4:10:00...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
age
63075
cache-control
🟡 0s(public,max-age=0,must-revalidate)
cache-status
"Netlify Edge"; hit
content-encoding
⚡ Brotli(br)
content-length
9095
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

20

SPF
DKIM
DMARC

MX Records (2)

spool.mail.gandi.net
fb.mail.gandi.net

Domain Information

asciidoctor.org

Domain Age
13y 4m

Created

27.12.2012

Expires

27.12.2026

Last Updated

02.11.2025

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.
D
57/100
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.
Viewport
width=device-width, initial-scale=1.0
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

DejaVu Sans + DejaVu Serif

WCAG Partial
62/100
Readability
/30
23/30

16px · LH 1.60

Hierarchy
/20
15/20

4x ratio

WCAG
/25
15/25

1.11:1 min contrast

Performance
/25
9/25

4 fonts · 2 req

Heading Font

DejaVu Sans

Sans64px

Body Font

DejaVu Serif

Serif16px

Contrast Ratio

1.11:1

8 issues

Reading Comfort

~39 CPL

Narrow lines
64px
h1
37px
h2
27px
h3
23px
h4
16px
p

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

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 8 elements below WCAG AA threshold (min 1.1:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 4.0x larger than body text.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFonts

Color Palette

6 unique colors
Light
#ffffff
Background· 45.599999999999994%
#136e9d
Primary· 33.9%
#c0bcb0
Secondary· 7.5%
#143b4f
Accent· 5.7%
#5288a3
Secondary· 2.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

5 Resources

4
Scripts
1
Styles
0
Async
0
Defer

Top Script Sources

local(4)

Website Identity

asciidoctor.org

13 years old
Location detected: 🇺🇸 United Statesvia ip
Gandi SASen

Social Profiles

X (Twitter)GitHub

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Last analyzed: 01 May 2026 at 03:10

Historical Analysis & Change Tracking