irtf.org

https://irtf.org· First analyzed 12 May 2026· Updated 12 May 2026

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irtf.org

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.66.159.9

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ken.ns.cloudflare.com.jill.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

464 ms10%

Speed Index

603 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

129 KB

4 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Technology Stack

3 Technologies Detected

CSS Frameworks

Bootstrapv5.3.1

Tailwind CSS

CDN

Cloudflare

SEO Analysis

D58/100

Meta Tags4/15

Content12/12

Headings8/8

Technical13/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

irtf.orgirtf.org

Internet Research Task Force

No description available for this page.

Title Length28 chars

Recommended: 50-60 chars (~171px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description — important for click-through rates in SERPs

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

626 URLs

robots.txt

Local SEO

Local Search Readiness

6/100

Poor

2 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

D41/100

Bot Access

20/25

Machine Read.

14/25

Schema Data

0/25

Citation

7/25

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:33%

Words:726

Token eff.:Optimal

Sections/1K:9.6

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary21w

Descriptive Headingsavg 2.9w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

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.

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

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.

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.

76/100

A+

13 mg

CO₂e / view

129.1 KB

Page Weight

95%

Cleaner Than

New Visitor

15 mg

Returning (cached)

7 mg

Annual (10K/mo)

1.6 kg

Emission Segments

Data Center

<0.001 g

Network

4 mg

Device

9 mg

Resource Breakdown

JavaScript

45.0 KB

Images

44.7 KB

CSS

35.5 KB

HTML

3.9 KB

Green Hosting Verified

Cloudflare

GWF Verified

2 recommendations

•Carbon footprint recommendation preview...

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Security Score

26%Critical

Interactive

HTTPS

WAF

59d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

11.04.2026

Valid Until

11.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

irtf.org*.irtf.org

SHA-256 Fingerprint

EC:EA:C8:BF:7F:64:63:A1:14:D4:D7:19:0B:10:E9:9B:1D:8E:25:4A...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age

48965

alt-svc

h3=":443"; ma=86400

cache-control

🟡 4 Hours(max-age=14400)

cf-cache-status

HIT

cf-ray🇫🇷 Paris

9fa8a8098bcebb51-CDG

content-encoding

⚡ Brotli(br)

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mail2.ietf.org

Domain Information

irtf.org

Domain Age

30y 11m

Created

09.06.1995

Expires

08.06.2027

Last Updated

09.05.2026

Registrar

Cloudflare, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

60/100

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...

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Typography & Readability

-apple-system

WCAG Partial

76/100

Readability

/30

25/30

16px · LH 1.50

Hierarchy

/20

16/20

2.5x ratio · ✓ H1→H6

WCAG

/25

13/25

4.45:1 min contrast

Performance

/25

22/25

System fonts

Heading Font

-apple-system

Sans40px

Body Font

-apple-system

Sans16px

Contrast Ratio

4.45:1

10 issues

Reading Comfort

~37 CPL

Narrow lines

40px

32px

28px

16px

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

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 31/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 10 elements below WCAG AA threshold (min 4.5:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 2.5x larger than body text.

Flesch 31

Color Palette

5 unique colors

4.27:1 AA Large Light

#ffffff

Background· 80.20000000000002%

#767b81

Other· 4.5%

#c5cdd4

Primary· 5.1%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

2 Resources

Scripts

Styles

Async

Defer

Top Script Sources

bootstrap-5.3.1-dist(1)

Website Identity

irtf.org

30 years old

Location detected: 🇨🇦 Canadavia ip

Cloudflare, Inc.en

Sponsored

Last analyzed: 12 May 2026 at 10:14

Historical Analysis & Change Tracking