michaelnielsen.org

https://michaelnielsen.org· First analyzed 05 May 2026· Updated 05 May 2026

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michaelnielsen.org

Mobile

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Hosting Provider

DreamHost

dreamhost.com

IP Address

69.163.178.139

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Hillsboro, United States

ASN

AS26347

Organization

DreamHost

Server

Apache

Nameservers

ns2.dreamhost.com.ns3.dreamhost.com.ns1.dreamhost.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

561 ms10%

Speed Index

729 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

32 KB

5 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Medium

Technology Stack

1 Technologies Detected

Web Servers

Apache

SEO Analysis

D45/100

Meta Tags4/15

Content12/12

Headings6/8

Technical5/21

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

michaelnielsen.orgmichaelnielsen.org

Michael Nielsen

No description available for this page.

Title Length15 chars

Recommended: 50-60 chars (~87px / 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 (3/3) — critical for accessibility and SEO
• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

13 issues found

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Crawlability

Sitemap

Type: standard

robots.txt

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.

Sponsored

AI & LLM Readiness

D43/100

Bot Access

20/25

Machine Read.

18/25

Schema Data

0/25

Citation

5/25

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.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:33%

Words:578

Token eff.:Optimal

Sections/1K:13.8

Structured Data

No Schema

Citation Readiness

Opening Summary47w

Descriptive Headingsavg 3.1w

Canonical URL

Open Graph0/3

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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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.

54/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

9/20

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.

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.

76/100

A+

3 mg

CO₂e / view

32.1 KB

Page Weight

95%

Cleaner Than

New Visitor

4 mg

Returning (cached)

2 mg

Annual (10K/mo)

384 g

Emission Segments

Data Center

<0.001 g

Network

1 mg

Device

2 mg

Resource Breakdown

Images

27.0 KB

CSS

718 B

HTML

4.4 KB

Green Hosting Verified

DreamHost

Provider Match

2 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

78d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

23.04.2026

Valid Until

22.07.2026

Subject Alternative Names (2)

michaelnielsen.orgwww.michaelnielsen.org

SHA-256 Fingerprint

04:82:5A:BB:8C:1E:A3:56:07:A0:C6:80:CF:35:70:F2:AE:26:A5:05...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🟡 600s(max-age=600)

content-encoding

📦 Gzip(gzip)

content-length

4167

content-type

text/html

date

Tue, 05 May 2026 11:25:01 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

mx2.mailchannels.net

mx1.mailchannels.net

Domain Information

michaelnielsen.org

Domain Age

18y 9m

Created

02.08.2007

Expires

02.08.2026

Last Updated

02.07.2024

Registrar

DreamHost, 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.

30/100

Not 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.

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Helvetica Neue

WCAG AA

83/100

Readability

/30

24/30

21px · LH 1.50

Hierarchy

/20

17/20

2x ratio

WCAG

/25

22/25

5.41:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Helvetica Neue

Sans42px

Body Font

Helvetica Neue

Sans21px

Contrast Ratio

5.41:1

WCAG AA (≥4.5:1)

Reading Comfort

Single Font Family

left aligned

42px

32px

21px

✅ Excellent readability: 21px body text is ideal for all devices.

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

⚠️ Hard to read: Flesch score 38/100. Simplify sentences for wider reach.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.4:1).

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

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

Flesch 38

Color Palette

7 unique colors

11.81:1 AAA Light

#eeeeee

Background· 87.30000000000001%

#2d2d32

Other· 1.8%

#cbd1d5

Primary· 2%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

1 Resources

Scripts

Styles

Async

Defer

Top Script Sources

Website Identity