kill-the-newsletter.com

https://kill-the-newsletter.com· First analyzed 20 May 2026· Updated 20 May 2026

Export

Mobile

Sponsored

Hosting Provider

Hetzner

hetzner.com

IP Address

159.69.13.122

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Nuremberg, Germany

ASN

AS24940

Organization

Hetzner

Nameservers

dns2.registrar-servers.com.dns1.registrar-servers.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

445 ms10%

Speed Index

578 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

216 KB

5 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Hetzner

Technology Stack

1 Technologies Detected

CSS Frameworks

Tailwind CSS

SEO Analysis

D41/100

Meta Tags5/15

Content10/12

Headings3/8

Technical7/21

E-E-A-T0/7

Images0/7

Links4/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

kill-the-newsletter.comkill-the-newsletter.com

Kill the Newsletter!

Convert email newsletters into Atom feeds

Title Length20 chars

Recommended: 50-60 chars (~115px / 580px)

Description Length41 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

13 issues found

Upgrade to view details

Local SEO

Local Search Readiness

2/100

Poor

1 14 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

F34/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

4/25

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:52%

Words:590

Token eff.:Optimal

Sections/1K:13.6

Structured Data

No Schema

Citation Readiness

Opening Summary10w

Descriptive Headingsavg 8.9w

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...

Upgrade to view recommendations

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.

59/100

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

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

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.

4 recommendations

•Accessibility recommendation preview...

Upgrade to view recommendations

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.

65/100

A+

22 mg

CO₂e / view

215.7 KB

Page Weight

95%

Cleaner Than

New Visitor

25 mg

Returning (cached)

12 mg

Annual (10K/mo)

2.6 kg

Emission Segments

Data Center

1 mg

Network

6 mg

Device

14 mg

Resource Breakdown

JavaScript

14.6 KB

CSS

198.1 KB

HTML

3.0 KB

Green Hosting Verified

Hetzner Online GmbH

GWF Verified

4 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

A+

Security Score

95%Excellent

Interactive

HTTPS

No WAF

57d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

17.04.2026

Valid Until

16.07.2026

Subject Alternative Names (1)

kill-the-newsletter.com

SHA-256 Fingerprint

7D:AC:B2:B7:8C:9E:17:FA:48:9F:B0:7B:E3:3E:96:72:E1:6A:88:89...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=2592000

cache-control

🔴 No Cache(no-store)

content-encoding

zstd

content-length

2758

content-security-policy

default-src 'none'; manifest-src 'self'; style-src 'self' 'u...

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

kill-the-newsletter.com

Domain Information

kill-the-newsletter.com

Domain Age

11y 1m

Created

19.04.2015

Expires

19.04.2027

Last Updated

20.03.2026

Registrar

NameCheap, 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.

49/100

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.

Viewport

width=device-width, initial-scale=1, maximum-scale=1, interactive-widget=resizes-content

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Roboto Flex Variable

WCAG Partial

59/100

Readability

/30

21/30

14px · LH 1.43

Hierarchy

/20

8/20

WCAG

/25

17/25

3.68:1 min contrast

Performance

/25

13/25

1 font · 2 req

Heading Font

Roboto Flex Variable

Sans

Body Font

Roboto Flex Variable

Sans14px

Contrast Ratio

3.68:1

7 issues

Reading Comfort

~45 CPL

Optimal (45–75)

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).

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

⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 3.7:1).

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

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

Buy on MyFontsFlesch 67

Color Palette

8 unique colors

4.29:1 AA Large Light

#ffffff

Background· 84.19999999999999%

#7a7a7a

Other· 2.5%

#e3e6e8

Primary· 2.1%

Sponsored

Scripts & Styles

2 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(1)

Website Identity

kill-the-newsletter.com

kill-the-newsletter@leafac.com

11 years old

Location detected: 🇩🇪 Germanyvia ip

NameCheap, Inc.

Social Profiles

GitHub

Sponsored

Last analyzed: 20 May 2026 at 10:20

Historical Analysis & Change Tracking