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asser.nl

https://asser.nl· First analyzed 07 May 2026· Updated 07 May 2026
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asser.nl
Desktop screenshot of asser.nl
Mobile screenshot of asser.nl
Mobile

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Hosting Provider

PCextreme

IP Address

92.63.174.153

Site Location

🇳🇱 Netherlandsvia phone

Server Location

🇳🇱 Amsterdam, The Netherlands

ASN

AS48635

Organization

PCextreme

Server

Nginx

Nameservers

ns3.argewebhosting.nl.ns2.argewebhosting.com.ns1.argewebhosting.eu.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
560 ms10%
Speed Index
728 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.4 MB
18 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
Infrastructure
Hosting
PCextreme

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

6 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

SEO Analysis

D43/100
11
10
3
Meta Tags0/15
Content6/12
Headings3/8
Technical14/21
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
A
asser.nlasser.nl

No Title Found

No description available for this page.

Title Length0 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

  • • Missing page title — critical for SEO rankings and SERP display
  • • Missing meta description — important for click-through rates in SERPs
  • • Missing H1 tag — every page should have exactly one H1

13 issues found

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Local SEO

Local Search Readiness

15/100
Poor
5 10 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

D40/100
Bot Access
20/25
Machine Read.
8/25
Schema Data
0/25
Citation
12/25

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:1%
Words:417
Token eff.:Optimal
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary38w
Descriptive Headingsavg 9.5w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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.
C
66/100
9
Passed
5
Critical
2
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
10/20
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
7/15
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.
4 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.
39/100
E
300 mg
CO₂e / view
2.4 MB
Page Weight
30%
Cleaner Than
New Visitor
343 mg
vs
Returning (cached)
172 mg
Annual (10K/mo)
36.0 kg
Emission Segments
Data Center
67 mg
Network
72 mg
Device
161 mg
Resource Breakdown
Images
2.0 MB
CSS
345.4 KB
HTML
37.0 KB
Green Hosting Not Verified
PCextreme
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

84d

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

01.05.2026

Valid Until

30.07.2026

Subject Alternative Names (2)

*.asser.nlasser.nl

SHA-256 Fingerprint

64:57:FE:C5:E6:ED:2D:15:07:1F:B8:6C:AD:C4:31:B3:A8:66:A7:DE...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding
⚡ Brotli(br)
content-type
text/html
date
Thu, 07 May 2026 00:36:52 GMT
etag
W/"69f7b7f8-32ff4"
last-modified
Sun, 03 May 2026 21:02:48 GMT
server
nginx
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

100

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

asser-nl.r-v1.mx.microsoft

Domain Information

asser.nl

Domain Age
34y 1m

Created

09.04.1992

Last Updated

30.11.2021

Registrar

Realtime Register

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
Privacy policy page linked

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.
B
74/100
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, initial-scale=1.0
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Lato

WCAG AA
73/100
Readability
/30
24/30

16px · LH 1.50

Hierarchy
/20
8/20
WCAG
/25
23/25

5.09:1 min contrast

Performance
/25
18/25

1 font · 4 req

Heading Font

Lato

Sans

Body Font

Lato

Sans16px

Contrast Ratio

5.09:1

WCAG AA (≥4.5:1)

Reading Comfort

~39 CPL

Narrow lines
44px
h2
24px
h3
16px
p

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

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

❌ Very complex text: Flesch score 13/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.1:1).

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

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

Buy on MyFontsFluid Type (rem)Flesch 13

Color Palette

11 unique colors
7.13:1 AAA Light
#ffffff
Primary· 33.7%
#5d5750
Secondary· 6.7%
#4387be
Secondary· 15.3%
#994343
Secondary· 7.4%
#b46358
Secondary· 6.5%
#4b352b
Secondary· 6%
#a2877f
Secondary· 4.1%
#5e88a4
Secondary· 3.2%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

4 Resources

0
Scripts
4
Styles
0
Async
0
Defer

Top Script Sources

Website Identity

asser.nl

info@asser.nl
+31703420300
34 years old
Location detected: 🇳🇱 Netherlandsvia phone
Realtime Registeren-GB

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Last analyzed: 07 May 2026 at 00:37

Historical Analysis & Change Tracking