browserchecker.nl

https://browserchecker.nl· First analyzed 31 May 2026· Updated 31 May 2026

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browserchecker.nl

Mobile

Sponsored

Hosting Provider

Antagonist B.V

IP Address

141.138.168.114

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Enschede, The Netherlands

ASN

AS20847

Organization

Antagonist B.V

Server

Apache

Nameservers

webhostingserver.g1-dns.com.webhostingserver.g1-dns.one.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

431 ms10%

Speed Index

560 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.7 MB

56 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Joomla!

Technology Stack

10 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Advertising

Google Ads Google AdSense

Libraries

CSS Frameworks

Icon Libraries

Fonts

Tag Managers

Web Servers

SEO Analysis

C68/100

Meta Tags15/15

Content3/12

Headings7/8

Technical23/25

E-E-A-T0/7

Images3/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

browserchecker.nlbrowserchecker.nl

Welke browser (versie) gebruik ik nu? - Browserchecker.nl

Browserchecker.nl - Alles over je browser weten zoals cookies en cache verwijderen, welke browser versie, javascript aanzetten, browser vergelijken.

Title Length57 chars

Recommended: 50-60 chars (~348px / 580px)

Description Length149 chars

Recommended: 120-160 chars

Issues (1)

• Very thin content (8 words). Search engines need substantial content for ranking.

7 issues found

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Crawlability

Sitemap

Type: standard

204 URLs

robots.txt

19 rules

Sitemap reference found

Local SEO

Local Search Readiness

11/100

Poor

3 12 2

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

Sponsored

AI & LLM Readiness

F33/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

2/25

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:2%

Words:1,747

Token eff.:Optimal

Structured Data

1 JSON-LD

Article×1.2(min)microdataBreadcrumbList

Citation Readiness

Opening Summary

Descriptive Headings

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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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.

76/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

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

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.

2 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.

54/100

172 mg

CO₂e / view

1.7 MB

Page Weight

60%

Cleaner Than

New Visitor

197 mg

Returning (cached)

98 mg

Annual (10K/mo)

20.7 kg

Emission Segments

Data Center

8 mg

Network

51 mg

Device

113 mg

Resource Breakdown

JavaScript

399.5 KB

Images

386.9 KB

CSS

765.7 KB

Fonts

6.8 KB

HTML

55.2 KB

Other

90.1 KB

Green Hosting Verified

Previder BV

GWF Verified

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

31%Critical

Interactive

HTTPS

No WAF

44d

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/2

Valid From

16.04.2026

Valid Until

15.07.2026

Subject Alternative Names (2)

browserchecker.nlwww.browserchecker.nl

SHA-256 Fingerprint

CB:21:6A:42:8E:20:66:5C:21:E3:49:1A:62:80:5C:FA:0F:76:F5:1C...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate, post-check=0, pre-check...)

content-encoding

📦 Gzip(gzip)

content-length

56230

content-type

text/html; charset=utf-8

date

Sun, 31 May 2026 23:05:15 GMT

expires

Wed, 17 Aug 2005 00:00:00 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mail.browserchecker.nl

Domain Information

browserchecker.nl

Domain Age

16y 4m

Created

28.01.2010

Last Updated

02.05.2025

Registrar

Antagonist B.V.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

77/100

Mobile Friendly4 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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Roboto + Fira Sans

WCAG AA

71/100

Readability

/30

26/30

16px · LH 1.50

Hierarchy

/20

16/20

1.8x ratio · ✓ H1→H6

WCAG

/25

20/25

6.37:1 min contrast

Performance

/25

9/25

2 fonts · 9 req

Heading Font

Roboto

Sans29px

Body Font

Fira Sans

Sans16px

Contrast Ratio

6.37:1

WCAG AA (≥4.5:1)

Reading Comfort

~33 CPL

Narrow lines

29px

21px

19px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

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

⚠️ Hard to read: Flesch score 42/100. Simplify sentences for wider reach.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.4:1).

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

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

GGoogle FontsFluid Type (rem)Flesch 42

Color Palette

6 unique colors

4:1 AA Large Light

#7f7f7f

Other· 73.2%

#ffffff

Text· 10.3%

#041a3f

Primary· 8.2%

#414b58

Secondary· 2.9%

#bbb49e

Secondary· 1.9%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

29 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(11)pagead2.googlesyndication.com(5)googletagmanager.com(3)use.fontawesome.com(1)

Website Identity

browserchecker.nl

16 years old

Location detected: 🇳🇱 Netherlandsvia tld

Antagonist B.V.nl-be

Social Profiles

X (Twitter)

Sponsored

Last analyzed: 31 May 2026 at 23:05

Historical Analysis & Change Tracking