jair.org

https://jair.org· First analyzed 01 May 2026· Updated 01 May 2026

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jair.org

Mobile

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Hosting Provider

Gossamer Threads Inc

IP Address

204.187.13.158

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Richmond Hill, Canada

ASN

AS36483

Organization

Gossamer Threads Inc

Server

Apache

Nameservers

ns30.worldnic.com.ns29.worldnic.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.1 s10%

Speed Index

1.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

294 KB

23 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

Gossamer Threads Inc

Technology Stack

5 Technologies Detected

Libraries

CSS Frameworks

Web Servers

SEO Analysis

D57/100

Meta Tags9/15

Content12/12

Headings3/8

Technical13/25

E-E-A-T3/7

Images1/7

Links4/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

jair.orgjair.org

Journal of Artificial Intelligence Research

No description available for this page.

Title Length43 chars

Recommended: 50-60 chars (~246px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (3/4) — critical for accessibility and SEO

10 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

2 rules

Local SEO

Local Search Readiness

7/100

Poor

3 13 2

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

Sponsored

AI & LLM Readiness

D44/100

Bot Access

20/25

Machine Read.

14/25

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

navheader/footer

Text ratio:18%

Words:1,212

Token eff.:Optimal

Sections/1K:44.6

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary59w

Descriptive Headingsavg 8.4w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (7)

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.

76/100

Passed

Critical

Warnings

Images & Alt Text

10/20

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

Semantic Structure

20/20

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.

57/100

A+

36 mg

CO₂e / view

293.8 KB

Page Weight

90%

Cleaner Than

New Visitor

42 mg

Returning (cached)

21 mg

Annual (10K/mo)

4.4 kg

Emission Segments

Data Center

8 mg

Network

9 mg

Device

20 mg

Resource Breakdown

JavaScript

113.9 KB

Images

147.4 KB

CSS

1.6 KB

HTML

9.0 KB

Other

21.9 KB

Green Hosting Not Verified

Gossamer Threads Inc

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

46%Poor

Interactive

HTTPS

No WAF

72d

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/1.1

Valid From

13.04.2026

Valid Until

12.07.2026

Subject Alternative Names (2)

jair.orgwww.jair.org

SHA-256 Fingerprint

51:7D:DE:69:A5:3F:01:81:45:4A:E0:4D:8A:34:9A:0A:6D:DE:C6:F2...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store)

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

8873

content-type

text/html; charset=utf-8

date

Fri, 01 May 2026 02:36:41 GMT

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

MX Records (5)

alt1.aspmx.l.google.com

alt2.aspmx.l.google.com

alt3.aspmx.l.google.com

alt4.aspmx.l.google.com

+1 more

Domain Information

jair.org

Domain Age

29y 4m

Created

07.01.1997

Expires

06.01.2029

Last Updated

06.01.2019

Registrar

Network Solutions, LLC

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.

65/100

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=1.0

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Calibri

WCAG Partial

58/100

Readability

/30

20/30

15px · LH 1.43

Hierarchy

/20

12/20

2.6x ratio

WCAG

/25

17/25

1.26:1 min contrast

Performance

/25

9/25

2 fonts · 12 req

Heading Font

Calibri

Sans39px

Body Font

Calibri

Sans15px

Contrast Ratio

1.26:1

6 issues

Reading Comfort

~37 CPL

Narrow lines

39px

32px

19px

15px

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 6 elements below WCAG AA threshold (min 1.3:1).

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

✅ Strong hierarchy: Headlines are 2.6x larger than body text.

Buy on MyFontsFlesch 0

Color Palette

10 unique colors

15.91:1 AAA Light

#ffffff

Background· 46.599999999999994%

#222222

Other· 9.8%

#38738a

Primary· 14.4%

#8eafb9

Secondary· 5.6%

#4f8396

Secondary· 3.6%

#0a2f49

Accent· 1.5%

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

jair.org(4)

Website Identity

jair.org

29 years old

Location detected: 🇨🇦 Canadavia ip

Network Solutions, LLC📧 Google Workspaceen-US

Social Profiles

X (Twitter)LinkedIn

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Last analyzed: 01 May 2026 at 02:37

Historical Analysis & Change Tracking