openttd.org

https://openttd.org· First analyzed 29 Apr 2026· Updated 29 Apr 2026

Export

openttd.org

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.26.8.176

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

sandy.ns.cloudflare.com.apollo.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

454 ms10%

Speed Index

590 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

180 KB

15 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Technology Stack

2 Technologies Detected

CSS Frameworks

Tailwind CSS

CDN

Cloudflare

SEO Analysis

D47/100

Meta Tags8/15

Content12/12

Headings1/8

Technical8/21

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

openttd.orgopenttd.org

OpenTTD | Home

An open source simulator based on the classic game Transport Tycoon Deluxe. It attempts to mimic the original game as closely as possible while extending it ...

Description truncated.

Title Length14 chars

Recommended: 50-60 chars (~90px / 580px)

Description Length175 chars

Recommended: 120-160 chars

Issues (3)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (5/6) — critical for accessibility and SEO
• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

11 issues found

Upgrade to view details

Local SEO

Local Search Readiness

6/100

Poor

2 13 2

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

Sponsored

AI & LLM Readiness

D42/100

Bot Access

20/25

Machine Read.

13/25

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

navheader/footer

Text ratio:29%

Words:551

Token eff.:Optimal

Sections/1K:10.9

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary28w

Descriptive Headingsavg 3.8w

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...

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.

58/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

13/20

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

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.

3 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.

78/100

A+

18 mg

CO₂e / view

180.3 KB

Page Weight

95%

Cleaner Than

New Visitor

21 mg

Returning (cached)

10 mg

Annual (10K/mo)

2.2 kg

Emission Segments

Data Center

<0.001 g

Network

5 mg

Device

12 mg

Resource Breakdown

Images

121.4 KB

CSS

55.7 KB

HTML

3.2 KB

Green Hosting Verified

Cloudflare

GWF Verified

2 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

78%Good

Static / Informational

HTTPS

WAF

80d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

19.04.2026

Valid Until

18.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.openttd.org

SHA-256 Fingerprint

25:EC:1C:2E:9D:3E:65:B6:8A:CF:43:5D:3D:AB:AB:23:3E:9A:23:96...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin

alt-svc

h3=":443"; ma=86400

cache-control

🟡 0s(public, max-age=0, must-revalidate)

cf-cache-status

DYNAMIC

cf-ray

9f3ae09aee33a4a0-EWR

content-encoding

⚡ Brotli(br)

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

openttd.zernebok.net

Domain Information

openttd.org

Domain Age

22y 1m

Created

07.03.2004

Expires

07.03.2027

Last Updated

07.03.2026

Registrar

PDR Ltd. d/b/a PublicDomainRegistry.com

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.

33/100

Not 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.

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Trebuchet MS

WCAG Partial

54/100

Readability

/30

20/30

14px · LH --

Hierarchy

/20

4/20

WCAG

/25

16/25

1:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Trebuchet MS

Sans

Body Font

Trebuchet MS

Sans14px

Contrast Ratio

1:1

23 issues

Reading Comfort

~61 CPL

Optimal (45–75)

18px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line length: ~61 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 23 elements below WCAG AA threshold (min 1.0:1).

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

⚠️ Text justify detected: Justified text creates uneven word spacing, hurting readability on web.

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

Buy on MyFontsFlesch 65

Color Palette

7 unique colors

11.36:1 AAA Light

#ffffff

Background· 23.299999999999997%

#3b3a38

Text· 19.3%

#ab9c7d

Primary· 42.49999999999999%

#485b39

Secondary· 4.2%

#f2f2ec

Secondary· 3.9%

#bcbb91

Secondary· 3.8%

#746955

Secondary· 3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

3 Resources

Scripts

Styles

Async

Defer

Top Script Sources

Website Identity

openttd.org

22 years old

Location detected: 🇨🇦 Canadavia ip

PDR Ltd. d/b/a PublicDomainRegistry.comen

Social Profiles

GitHub

Sponsored

Last analyzed: 29 Apr 2026 at 02:29

Historical Analysis & Change Tracking