kernelnewbies.org

https://kernelnewbies.org· First analyzed 27 Apr 2026· Updated 27 Apr 2026

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kernelnewbies.org

Mobile

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Hosting Provider

Comcast Cable Communications, LLC

IP Address

96.67.55.151

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Norwood, United States

ASN

AS7922

Organization

Comcast Cable Communications, LLC

Server

Nginx

Nameservers

ns1.sosdg.org.ns1.infradead.org.mithlond.surriel.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.0 s10%

Speed Index

1.3 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

367 KB

11 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

Comcast Cable Communications, LLC

Technology Stack

4 Technologies Detected

CSS Frameworks

Libraries

Web Servers

SEO Analysis

D55/100

Meta Tags9/15

Content11/12

Headings3/8

Technical11/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

kernelnewbies.orgkernelnewbies.org

Linux_Kernel_Newbies - Linux Kernel Newbies

No description available for this page.

Title Length43 chars

Recommended: 50-60 chars (~259px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1

11 issues found

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Crawlability

Sitemap

robots.txt

4 rules

Local SEO

Local Search Readiness

0/100

Poor

15 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

F34/100

Bot Access

20/25

Machine Read.

8/25

Schema Data

0/25

Citation

6/25

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

Text ratio:16%

Words:558

Token eff.:Optimal

Sections/1K:14.3

Structured Data

No Schema

Citation Readiness

Opening Summary24w

Descriptive Headingsavg 1.8w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

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.

67/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

4/20

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

4/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 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.

52/100

45 mg

CO₂e / view

367.2 KB

Page Weight

90%

Cleaner Than

New Visitor

52 mg

Returning (cached)

26 mg

Annual (10K/mo)

5.4 kg

Emission Segments

Data Center

10 mg

Network

11 mg

Device

24 mg

Resource Breakdown

JavaScript

154.7 KB

Images

6.2 KB

CSS

199.9 KB

HTML

6.5 KB

Green Hosting Not Verified

Comcast Cable Communications, LLC

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

67d

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

04.04.2026

Valid Until

03.07.2026

Subject Alternative Names (1)

kernelnewbies.org

SHA-256 Fingerprint

28:D1:A8:F0:78:CB:D5:C4:49:9F:1B:97:54:5B:07:EB:C4:B8:74:5C...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Mon, 27 Apr 2026 17:58:18 GMT

server

nginx/1.20.1

transfer-encoding

chunked

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

shelob.surriel.com

Domain Information

kernelnewbies.org

Domain Age

25y 11m

Created

18.05.2000

Expires

18.05.2026

Last Updated

08.05.2025

Registrar

easyDNS Technologies Inc.

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.

59/100

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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Helvetica Neue

WCAG Partial

65/100

Readability

/30

22/30

14px · LH 1.43

Hierarchy

/20

8/20

WCAG

/25

16/25

1.26:1 min contrast

Performance

/25

19/25

System fonts

Heading Font

Helvetica Neue

Sans

Body Font

Helvetica Neue

Sans14px

Contrast Ratio

1.26:1

22 issues

Reading Comfort

~44 CPL

Narrow lines

30px

18px

14px

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

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

⚠️ Partial contrast: 22 elements below WCAG AA threshold (min 1.3:1).

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

✅ System fonts: Zero font loading delay — best possible LCP impact.

Flesch 54

Color Palette

7 unique colors

14.16:1 AAA Light

#ffffff

Background· 85.39999999999998%

#2b2b2b

Other· 3.2%

#b8c1c6

Primary· 3.7%

#d1dde4

Secondary· 2.3%

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Scripts & Styles

8 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(4)

Website Identity