StackOptic
Back to Search
woltlab.com favicon

woltlab.com

https://woltlab.com· First analyzed 29 Apr 2026· Updated 29 Apr 2026
Export
woltlab.com
Desktop screenshot of woltlab.com
Mobile screenshot of woltlab.com
Mobile

Sponsored

Hosting Provider

23M.com

IP Address

62.113.233.136

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS47447

Organization

23M.com

CDN

Cloudflare

WAF

Cloudflare

Nameservers

theo.ns.cloudflare.com.fay.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
494 ms10%
Speed Index
642 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.2 MB
45 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
23M.com
CDN
Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

7 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

UI Components

1
Fancybox

CSS Frameworks

1
Bootstrap

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Customer Support

1
Intercom

SEO Analysis

B76/100
24
4
1
Meta Tags14/15
Content11/12
Headings6/8
Technical19/25
E-E-A-T3/7
Images4/7
Links4/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
W
woltlab.comwoltlab.com

WoltLab Suite - Premium Community Forum Software

Create a forum for your customers, fans or colleagues in just a few steps. The modern and secure forum software for your community platform.

Title Length48 chars

Recommended: 50-60 chars (~308px / 580px)

Description Length140 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (19/36) — critical for accessibility and SEO

5 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

46 rules

Local SEO

Local Search Readiness

10/100
Poor
3 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

D55/100
Bot Access
20/25
Machine Read.
14/25
Schema Data
7/25
Citation
14/25

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:10%
Words:1,290
Token eff.:Optimal
Sections/1K:11.6
Depth:2/5

Structured Data

1 JSON-LD
FAQPage×1.5microdataWebSiteSearchAction

Citation Readiness

Opening Summary21w
Descriptive Headingsavg 5.8w
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (7)
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.
B
79/100
13
Passed
3
Critical
2
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
18/20
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
7/15
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.
71/100
B
123 mg
CO₂e / view
1.2 MB
Page Weight
70%
Cleaner Than
New Visitor
140 mg
vs
Returning (cached)
70 mg
Annual (10K/mo)
14.7 kg
Emission Segments
Data Center
6 mg
Network
36 mg
Device
81 mg
Resource Breakdown
JavaScript
466.9 KB
Images
586.7 KB
CSS
139.3 KB
HTML
22.2 KB
Green Hosting Verified
23M GmbH
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
C

Security Score

67%Fair
Interactive

HTTPS

No WAF

65d

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

Valid From

05.04.2026

Valid Until

04.07.2026

Subject Alternative Names (1)

www.woltlab.com

SHA-256 Fingerprint

25:47:61:98:2E:AE:4C:F1:3C:83:05:DA:A2:8F:70:69:AB:F5:B6:AB...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(max-age=0, no-cache, no-store, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=UTF-8
cross-origin-opener-policy
same-origin
cross-origin-resource-policy
same-site
date
Wed, 29 Apr 2026 08:49:46 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

75

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (3)

mxext2.mailbox.org
mxext3.mailbox.org
mxext1.mailbox.org

Domain Information

woltlab.com

Domain Age
24y 5m

Created

13.11.2001

Expires

13.11.2031

Last Updated

01.12.2025

Registrar

INWX GmbH

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
Privacy policy page linked
Data Protection Officer mentioned

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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

-apple-system

WCAG Partial
78/100
Readability
/30
22/30

22px · LH 1.48

Hierarchy
/20
19/20

2.55x ratio · ✓ H1→H6

WCAG
/25
16/25

1.12:1 min contrast

Performance
/25
21/25

System fonts

Heading Font

-apple-system

Sans56px

Body Font

-apple-system

Sans22px

Contrast Ratio

1.12:1

9 issues

Reading Comfort

~41 CPL

Narrow lines
56px
h1
44px
h2
18px
h3
18px
h4
22px
p

✅ Excellent readability: 22px body text is ideal for all devices.

✅ Optimal line spacing: 1.48 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.1:1).

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

✅ Strong hierarchy: Headlines are 2.5x larger than body text.

✅ System fonts: Zero font loading delay — best possible LCP impact.

Flesch 51

Color Palette

9 unique colors
Light
#fafafa
Background· 18.9%
#164066
Primary· 22.599999999999998%
#3a6d9c
Primary· 0%
#0e6397
Accent· 21.9%
#0976b0
Primary· 10.1%
#e6ecea
Secondary· 6.8%
#0684c2
Primary· 6.2%
#0f4e78
Accent· 6.2%

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

Sponsored

Scripts & Styles

23 Resources

20
Scripts
3
Styles
10
Async
0
Defer

Top Script Sources

woltlab.com(15)googletagmanager.com(3)cloud.ccm19.de(2)

Website Identity

woltlab.com

24 years old
Location detected: 🇩🇪 Germanyvia ip
INWX GmbHen-US

Sponsored

Last analyzed: 29 Apr 2026 at 08:49

Historical Analysis & Change Tracking