rehva.eu

https://rehva.eu· First analyzed 11 May 2026· Updated 11 May 2026

Export

rehva.eu

Mobile

Sponsored

Hosting Provider

Hetzner

hetzner.com

IP Address

78.46.179.121

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Nuremberg, Germany

ASN

AS24940

Organization

Hetzner

Server

Apache

Nameservers

dns200.anycast.me.ns200.anycast.me.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

488 ms10%

Speed Index

634 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3.4 MB

122 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

TYPO3

Technology Stack

10 Technologies Detected

Analytics

CSS Frameworks

Icon Libraries

Fonts

Advertising

Social

Web Servers

SEO Analysis

B72/100

Meta Tags9/15

Content11/12

Headings6/8

Technical22/25

E-E-A-T0/7

Images2/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

rehva.eurehva.eu

Federation of European Heating, Ventilation and Air Conditioning As...

REHVA is a HVAC association that develops and promotes energy efficient, safe and healthy technology for mechanical services of building.

Title truncated.

Title Length77 chars

Recommended: 50-60 chars (~451px / 580px)

Description Length137 chars

Recommended: 120-160 chars

Issues (1)

• Title is too long (77 chars, ~451px). Will be truncated in search results.

6 issues found

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Crawlability

Sitemap

Type: index

9 URLs

9 sub-sitemaps

robots.txt

9 rules

Sitemap reference found

Local SEO

Local Search Readiness

12/100

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

D49/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

3/25

Citation

15/25

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:6%

Words:1,815

Token eff.:Optimal

Sections/1K:23.7

Depth:1/5

Structured Data

Microdata

Article×1.2microdata

Citation Readiness

Opening Summary49w

Descriptive Headingsavg 9w

Canonical URL

Open Graph3/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

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.

65/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

15/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

5/15

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

6/15

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.

36/100

353 mg

CO₂e / view

3.4 MB

Page Weight

15%

Cleaner Than

New Visitor

403 mg

Returning (cached)

202 mg

Annual (10K/mo)

42.3 kg

Emission Segments

Data Center

17 mg

Network

104 mg

Device

232 mg

Resource Breakdown

JavaScript

386.1 KB

Images

1.7 MB

CSS

1.3 MB

Fonts

1.3 KB

HTML

16.7 KB

Other

72.6 KB

Green Hosting Verified

Hetzner Online GmbH

GWF Verified

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

31%Critical

Interactive

HTTPS

No WAF

58d

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

10.04.2026

Valid Until

09.07.2026

Subject Alternative Names (2)

rehva.euwww.rehva.eu

SHA-256 Fingerprint

C7:9C:7C:39:9E:40:37:F9:7A:96:24:26:B7:C5:5C:FD:9F:8E:95:26...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟡 0s(max-age=0)

content-encoding

📦 Gzip(gzip)

content-language

content-length

16779

content-type

text/html; charset=utf-8

date

Mon, 11 May 2026 23:01:41 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

rehva-eu.mail.protection.outlook.com

Domain Information

rehva.eu

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

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.

42/100

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.

Viewport

width=device-width, height=device-height, initial-scale=1, maximum-scale=1, user-scalable=0

5 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Arial

WCAG Partial

69/100

Readability

/30

21/30

14px · LH 1.71

Hierarchy

/20

18/20

3.43x ratio

WCAG

/25

15/25

1:1 min contrast

Performance

/25

15/25

System fonts

Heading Font

Arial

Sans48px

Body Font

Arial

Sans14px

Contrast Ratio

1:1

11 issues

Reading Comfort

~63 CPL

Optimal (45–75)

48px

30px

14px

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

✅ Optimal line length: ~63 chars/line (ideal 45–75 CPL).

⚠️ Hard to read: Flesch score 35/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 11 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 3.4x larger than body text.

GGoogle FontsFlesch 35

Color Palette

7 unique colors

8.53:1 AAA Light

#ffffff

Background· 18.400000000000002%

#484e49

Text· 8.5%

#7bcebe

Primary· 31.1%

#87cca6

Secondary· 18.299999999999997%

#9ed292

Secondary· 11%

#91ba68

Secondary· 8.8%

#d2e5ce

Secondary· 4%

Business & Marketing Stack

6 Tools Detected

Enterprise

Behavior Analytics

Google AnalyticsFree

HotjarMid-Market

User behavior and product analytics

Advertising

Facebook PixelMid-Market

LinkedIn AdsEnterprise

Ad platforms and retargeting pixels

Social Media

AddThisFree

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(7)connect.facebook.net(2)platform.twitter.com(1)snap.licdn.com(1)static.hotjar.com(1)

Website Identity

rehva.eu

Location detected: 🇩🇪 Germanyvia ip

📧 Microsoft 365en

Social Profiles

Facebook X (Twitter)LinkedIn

Sponsored

Last analyzed: 11 May 2026 at 23:01

Historical Analysis & Change Tracking