tcsamsterdammarathon.nl

https://tcsamsterdammarathon.nl· First analyzed 22 May 2026· Updated 22 May 2026

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Mobile

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Hosting Provider

TrueFullstaq B.V

IP Address

87.233.68.167

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Amsterdam, The Netherlands

ASN

AS15703

Organization

TrueFullstaq B.V

Server

Apache

Nameservers

nsauth2.trans-ix.net.nsauth1.trans-ix.nl.nsauth3.trans-ix.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

779 ms10%

Speed Index

1.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

168 KB

75 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

TrueFullstaq B.V

Technology Stack

8 Technologies Detected

Analytics

Frameworks

CSS Frameworks

Icon Libraries

Tag Managers

Web Servers

SEO Analysis

D58/100

Meta Tags15/15

Content12/12

Headings6/8

Technical9/21

E-E-A-T0/7

Images2/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

tcsamsterdammarathon.nltcsamsterdammarathon.nl

TCS Amsterdam Marathon – TCS Amsterdam Marathon - NL

De TCS Amsterdam Marathon vindt plaats op zaterdag 17 en zondag 18 oktober 2026. Hoogtepunten in het parcours zijn de start en finish in het Olympisch...

Title Length52 chars

Recommended: 50-60 chars (~339px / 580px)

Description Length153 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (67/70) — critical for accessibility and SEO

12 issues found

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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.

Sponsored

AI & LLM Readiness

F36/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

6/25

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:4%

Words:901

Token eff.:Optimal

Sections/1K:17.8

Structured Data

No Schema

Citation Readiness

Opening Summary10w

Descriptive Headingsavg 3w

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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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.

54/100

Passed

Critical

Warnings

Images & Alt Text

10/20

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

Semantic Structure

9/20

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...

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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.

51/100

A+

21 mg

CO₂e / view

168.1 KB

Page Weight

95%

Cleaner Than

New Visitor

24 mg

Returning (cached)

12 mg

Annual (10K/mo)

2.5 kg

Emission Segments

Data Center

5 mg

Network

5 mg

Device

11 mg

Resource Breakdown

JavaScript

148.4 KB

Images

342 B

HTML

19.3 KB

Green Hosting Not Verified

TrueFullstaq B.V

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

68d

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

01.05.2026

Valid Until

30.07.2026

Subject Alternative Names (2)

tcsamsterdammarathon.nlwww.tcsamsterdammarathon.nl

SHA-256 Fingerprint

38:57:CF:A4:E4:62:D9:53:BB:1A:75:C3:50:2A:A4:DC:37:13:58:0C...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache, private)

content-encoding

📦 Gzip(gzip)

content-length

19513

content-type

text/html; charset=UTF-8

date

Fri, 22 May 2026 14:49:50 GMT

response-cache

MISS

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

Domain Information

tcsamsterdammarathon.nl

Domain Age

14y 7m

Created

29.09.2011

Last Updated

18.09.2020

Registrar

Metaregistrar B.V.

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

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.

56/100

Mobile Friendly3 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=1.0, maximum-scale=1.0, user-scalable=0

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

GaboDrive + Neue Helvetica W05

WCAG Partial

69/100

Readability

/30

24/30

17px · LH 1.80

Hierarchy

/20

16/20

3.82x ratio · ✓ H1→H6

WCAG

/25

16/25

3.73:1 min contrast

Performance

/25

13/25

2 fonts · 5 req

Heading Font

GaboDrive

Sans65px

Body Font

Neue Helvetica W05

Sans17px

Contrast Ratio

3.73:1

46 issues

Reading Comfort

~44 CPL

Narrow lines

65px

30px

32px

26px

17px

✅ Excellent readability: 17px body text is ideal for all devices.

⚠️ Partial contrast: 46 elements below WCAG AA threshold (min 3.7:1).

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

✅ Strong hierarchy: Headlines are 3.8x larger than body text.

✅ Lean font stack: 2 font families keeps load times fast.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFonts

Color Palette

10 unique colors

3.12:1 AA Large Light

#ffffff

Text· 9.6%

#9b8f91

Other· 5.5%

#0b0b16

Primary· 46.4%

#151e43

Accent· 9.9%

#1d8dd5

Accent· 8.7%

#174784

Accent· 5.6%

#5a4a51

Secondary· 5.2%

#d8e1e4

Secondary· 2.5%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

do.occdn.net(7)googletagmanager.com(4)connect.facebook.net(2)fast.fonts.net(2)google-analytics.com(1)

Website Identity