jack-clark.net

https://jack-clark.net· First analyzed 02 Jun 2026· Updated 02 Jun 2026

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jack-clark.net

Mobile

Sponsored

Hosting Provider

Automattic, Inc

IP Address

192.0.78.128

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 San Francisco, United States

ASN

AS2635

Server

Nginx

Nameservers

ns3.wordpress.com.ns1.wordpress.com.ns2.wordpress.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

825 ms10%

Speed Index

1.1 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

195 KB

13 requests

Image Optimization

Jetpack Photon (WordPress)

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Manifestv1.2Custom

by Jim Barraud

View Theme

Technology Stack

6 Technologies Detected

Plugins

UI Components

CSS Frameworks

Web Servers

SEO Analysis

D56/100

Meta Tags4/15

Content12/12

Headings5/8

Technical15/25

E-E-A-T3/7

Images1/7

Links2/5

URL5/5

Social3/5

Freshness0/4

Mobile3/4

Indexability3/3

jack-clark.netjack-clark.net

Import AI

No description available for this page.

Title Length9 chars

Recommended: 50-60 chars (~54px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

• Missing meta description — important for click-through rates in SERPs
• Most images missing alt text (1/1) — critical for accessibility and SEO
• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

12 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

2 URLs

2 sub-sitemaps

robots.txt

5 rules

Sitemap reference found

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

F36/100

Bot Access

20/25

Machine Read.

5/25

Schema Data

0/25

Citation

11/25

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:69%

Words:34,172

Token eff.:Excessive

Sections/1K:0.1

Depth:1/5

Structured Data

Microdata

Citation Readiness

Opening Summary27w

Descriptive Headingsavg 13w

Canonical URL

Open Graph2/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

AI readiness recommendation preview...

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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.

73/100

Passed

Critical

Warnings

Images & Alt Text

18/20

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

10/15

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

6/15

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.

60/100

A+

24 mg

CO₂e / view

195.3 KB

Page Weight

95%

Cleaner Than

New Visitor

28 mg

Returning (cached)

14 mg

Annual (10K/mo)

2.9 kg

Emission Segments

Data Center

5 mg

Network

6 mg

Device

13 mg

Resource Breakdown

JavaScript

20.0 KB

Images

6.4 KB

CSS

34.7 KB

HTML

98.6 KB

Other

35.7 KB

Green Hosting Not Verified

Automattic, Inc

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

36%Critical

Interactive

HTTPS

No WAF

38d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

11.04.2026

Valid Until

10.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

tls.automattic.comadaletsolingen.orgalarm4freedom.comanactordespairs.co.ukbcfd1.combookcatslibrary.comebookpoke.comexceedhealthcare.com+12 more

SHA-256 Fingerprint

3B:22:DA:C4:78:5A:B8:53:2E:6F:A9:21:08:24:A5:99:15:9C:01:10...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

clear

cache-control

🟡 300s(max-age=300, must-revalidate)

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

date

Tue, 02 Jun 2026 04:08:52 GMT

host-header

WordPress.com

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

alt2.aspmx.l.google.com

alt1.aspmx.l.google.com

alt4.aspmx.l.google.com

aspmx.l.google.com

+1 more

Domain Information

jack-clark.net

Domain Age

9y 10m

Created

30.07.2016

Expires

30.07.2026

Last Updated

30.06.2025

Registrar

Wild West Domains, 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.

51/100

Not 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.

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Palatino

WCAG Partial

63/100

Readability

/30

23/30

14px · LH 1.50

Hierarchy

/20

10/20

2.36x ratio

WCAG

/25

16/25

2.75:1 min contrast

Performance

/25

14/25

System fonts

Heading Font

Palatino

Serif33px

Body Font

Palatino

Serif14px

Contrast Ratio

2.75:1

5 issues

Reading Comfort

~64 CPL

Optimal (45–75)

33px

15px

23px

12px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

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

✅ Optimal line length: ~64 chars/line (ideal 45–75 CPL).

⚠️ Hard to read: Flesch score 47/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 5 elements below WCAG AA threshold (min 2.8:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

Buy on MyFontsFlesch 47

Color Palette

6 unique colors

2.83:1 Fail Light

#ffffff

Background· 92.49999999999999%

#9c9999

Other· 1.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

jack-clark.net(3)s0.wp.com(1)stats.wp.com(1)

Website Identity

jack-clark.net

9 years old

Location detected: 🇺🇸 United Statesvia ip

Wild West Domains, LLC📧 Google Workspaceen-US

Social Profiles

X (Twitter)GitHub

Sponsored

Last analyzed: 02 Jun 2026 at 04:09

Historical Analysis & Change Tracking