jonathanrosenbaum.net

https://jonathanrosenbaum.net· First analyzed 25 May 2026· Updated 25 May 2026

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Mobile

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Hosting Provider

GoDaddy

godaddy.com

IP Address

166.62.108.229

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Tempe, United States

ASN

AS398787

Organization

GoDaddy.com, LLC

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

aragorn.ns.cloudflare.com.nora.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

798 ms10%

Speed Index

1.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

274 KB

54 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

JR2Custom

View Theme

Technology Stack

5 Technologies Detected

Analytics

Google Analytics

Segment

CSS Frameworks

Tailwind CSS

Fonts

Adobe Fonts (Typekit)

CDN

Cloudflare

SEO Analysis

C62/100

Meta Tags4/15

Content11/12

Headings8/8

Technical16/25

E-E-A-T3/7

Images3/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

jonathanrosenbaum.netjonathanrosenbaum.net

Jonathan Rosenbaum

No description available for this page.

Title Length18 chars

Recommended: 50-60 chars (~114px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description — important for click-through rates in SERPs
• Most images missing alt text (22/30) — critical for accessibility and SEO

9 issues found

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Crawlability

Sitemap

Type: index

8 URLs

8 sub-sitemaps

robots.txt

2 rules

Allows all crawlers

Local SEO

Local Search Readiness

3/100

Poor

1 14 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

F39/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

9/25

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:18%

Words:3,212

Token eff.:Good

Sections/1K:5.9

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary232w

Descriptive Headingsavg 7w

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.

70/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

15/20

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

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.

66/100

A+

34 mg

CO₂e / view

274.4 KB

Page Weight

90%

Cleaner Than

New Visitor

39 mg

Returning (cached)

19 mg

Annual (10K/mo)

4.1 kg

Emission Segments

Data Center

8 mg

Network

8 mg

Device

18 mg

Resource Breakdown

JavaScript

36.8 KB

Images

192.6 KB

CSS

21.7 KB

HTML

23.3 KB

Green Hosting Not Verified

GoDaddy

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

26%Critical

Interactive

HTTPS

WAF

63d

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

28.04.2026

Valid Until

27.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

jonathanrosenbaum.net

SHA-256 Fingerprint

40:CC:53:50:F7:43:6E:4E:8F:53:6F:34:AA:EA:6C:C2:44:70:8D:4C...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age

83220

alt-svc

h3=":443"; ma=86400

cache-control

🟢 1 Month(public, max-age=2678400)

cf-cache-status

HIT

cf-ray

a011c9951bcd250d-SJC

content-encoding

⚡ Brotli(br)

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mail.jonathanrosenbaum.net

Domain Information

jonathanrosenbaum.net

Domain Age

12y 7m

Created

02.10.2013

Expires

02.10.2027

Last Updated

03.10.2023

Registrar

Netregistry Wholesale Pty Ltd

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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 Friendly2 breakpoints

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, maximum-scale=1

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

freight-display-pro + freight-text-pro

WCAG Partial

71/100

Readability

/30

23/30

20px · LH 1.30

Hierarchy

/20

15/20

1.3x ratio · ✓ H1→H6

WCAG

/25

17/25

2.32:1 min contrast

Performance

/25

16/25

2 fonts

Heading Font

freight-display-pro

Sans26px

Body Font

freight-text-pro

Sans20px

Contrast Ratio

2.32:1

8 issues

Reading Comfort

~32 CPL

Narrow lines

26px

40px

20px

Minor Second

Scale

✅ Excellent readability: 20px body text is ideal for all devices.

⚠️ Tight line spacing (1.30). Increase to 1.4–1.6 for better readability.

⚠️ Hard to read: Flesch score 43/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 8 elements below WCAG AA threshold (min 2.3:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

AAdobe Fonts Buy on MyFontsFlesch 43

Color Palette

10 unique colors

4.21:1 AA Large Light

#ffffff

Background· 78.30000000000001%

#7f7b75

Other· 1.9%

#9b8b80

Secondary· 2.3%

#221412

Primary· 2.1%

#56483e

Secondary· 2%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

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Scripts & Styles

8 Resources

Scripts

Styles

Async

Defer

Top Script Sources

img1.wsimg.com(2)google-analytics.com(1)use.typekit.net(1)jonathanrosenbaum.net(1)

Website Identity

jonathanrosenbaum.net

12 years old

Location detected: 🇺🇸 United Statesvia ip

Netregistry Wholesale Pty Ltden-US

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Last analyzed: 25 May 2026 at 04:27

Historical Analysis & Change Tracking