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christianheilmann.com

https://christianheilmann.com· First analyzed 09 May 2026· Updated 09 May 2026
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christianheilmann.com
Desktop screenshot of christianheilmann.com
Mobile screenshot of christianheilmann.com
Mobile

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Hosting Provider

godaddy.com

IP Address

50.62.223.222

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Tempe, United States

ASN

AS398101

Organization

GoDaddy.com, LLC

Server

Apache

Nameservers

ns1.mediatemple.net.ns2.mediatemple.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
471 ms10%
Speed Index
612 ms10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
505 KB
13 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
yuiminimalCustom

Technology Stack

6 Technologies Detected

Frameworks

1

Web Servers

1

Languages

1

Plugins

1

SEO Analysis

D50/100
14
9
3
Meta Tags4/15
Content12/12
Headings3/8
Technical16/25
E-E-A-T0/7
Images1/7
Links2/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
C
christianheilmann.comchristianheilmann.com

Christian Heilmann

No description available for this page.

Title Length18 chars

Recommended: 50-60 chars (~105px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

  • Missing meta description — important for click-through rates in SERPs
  • Missing H1 tag — every page should have exactly one H1
  • Most images missing alt text (5/7) — critical for accessibility and SEO

Crawlability

Sitemap

Type: index

5 URLs

5 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

10/100
Poor
3 12 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

F36/100
Bot Access
20/25
Machine Read.
7/25
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:30%
Words:4,021
Token eff.:Poor Structure
Sections/1K:1.7
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary60w
Descriptive Headingsavg 11.1w
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.
A
80/100
11
Passed
3
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
11/20
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
15/15
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.
1 recommendation
  • Accessibility recommendation preview...

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.
57/100
A
62 mg
CO₂e / view
504.9 KB
Page Weight
90%
Cleaner Than
New Visitor
71 mg
vs
Returning (cached)
36 mg
Annual (10K/mo)
7.5 kg
Emission Segments
Data Center
14 mg
Network
15 mg
Device
34 mg
Resource Breakdown
JavaScript
1.2 KB
Images
487.7 KB
CSS
4.6 KB
HTML
11.4 KB
Green Hosting Not Verified
GoDaddy
3 recommendations
  • Carbon footprint recommendation preview...
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

153d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Starfield Technologies, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

20.09.2025

Valid Until

10.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

christianheilmann.comwww.christianheilmann.com

SHA-256 Fingerprint

F0:81:43:44:78:F7:3B:49:2A:79:A6:B8:0C:19:CC:41:A9:56:02:7D...

Top Recommendations

Security recommendation preview

HTTP Headers

Developer Console

cache-control
🟡 3s(max-age=3, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-length
11409
content-type
text/html; charset=UTF-8
date
Sat, 09 May 2026 20:00:29 GMT
server
Apache
Good Warning Issue

Email Infrastructure

Google Workspace

Score

45

SPF
DKIM
DMARC

MX Records (5)

alt4.aspmx.l.google.com
alt1.aspmx.l.google.com
alt2.aspmx.l.google.com
alt3.aspmx.l.google.com

+1 more

Domain Information

christianheilmann.com

Domain Age
16y 9m

Created

13.08.2009

Expires

13.08.2026

Last Updated

14.08.2025

Registrar

Wild West Domains, LLC

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

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.
C
64/100
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
1 recommendation
  • Mobile compatibility recommendation preview...

Typography & Readability

Avenir

WCAG Partial
65/100
Readability
/30
26/30

20px · LH 1.50

Hierarchy
/20
8/20
WCAG
/25
15/25

1.16:1 min contrast

Performance
/25
16/25

1 font

Heading Font

Avenir

Sans

Body Font

Avenir

Sans20px

Contrast Ratio

1.16:1

1 issue

Reading Comfort

~37 CPL

Narrow lines
37px
h2
20px
p

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

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

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 1.2:1).

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

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

✅ Lean font stack: 1 font families keeps load times fast.

Color Palette

7 unique colors
18.11:1 AAA Light
#f8f8f8
Background· 78.8%
#100e0f
Text· 4.2%
#9ca7b1
Primary· 3.8%
#d0ae9c
Secondary· 3.7%
#efe2d6
Secondary· 3.2%
#7a5c56
Secondary· 2.6%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

Ad Networks

Carbon Ads

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Scripts & Styles

4 Resources

2
Scripts
2
Styles
1
Async
0
Defer

Top Script Sources

google-analytics.com(1)christianheilmann.com(1)

Website Identity

christianheilmann.com

Christian Heilmannis the blog ofChristian Heilmannchris@christianheilmann.com(Please do not contact me about guest posts

Location detected: 🇺🇸 United Statesvia ip
Wild West Domains, LLC📧 Google Workspaceen-US

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Last analyzed: 09 May 2026 at 20:00

Historical Analysis & Change Tracking