aivc.org

https://aivc.org· First analyzed 31 May 2026· Updated 31 May 2026

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aivc.org

Mobile

Sponsored

Hosting Provider

Hetzner

hetzner.com

IP Address

65.21.116.176

Site Location

🇫🇮 Finlandvia ip

Server Location

🇫🇮 Helsinki, Finland

ASN

AS24940

Organization

Hetzner

Server

Apache

Nameservers

ns53.io.ns53.it.ns53.be.

Performance

Core Web Vitals

Weight

First Contentful Paint

790 ms10%

Speed Index

1.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

4 MB

108 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

CMS

Drupalv7

Infrastructure

Hosting

Hetzner

Technology Stack

12 Technologies Detected

UI Components

Owl Carousel Lightbox

CSS Frameworks

Analytics

Libraries

Other

Other

Icon Libraries

Fonts

Web Servers

SEO Analysis

C63/100

Meta Tags10/15

Content10/12

Headings3/8

Technical18/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile3/4

Indexability3/3

aivc.orgaivc.org

AIVC | Air Infiltration and Ventilation Centre

Air Infiltration and Ventilation Centre

Title Length46 chars

Recommended: 50-60 chars (~263px / 580px)

Description Length39 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (32/42) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

2 URLs

2 sub-sitemaps

robots.txt

76 rules

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.

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AI & LLM Readiness

F39/100

Bot Access

20/25

Machine Read.

8/25

Schema Data

0/25

Citation

11/25

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:3%

Words:561

Token eff.:Optimal

Sections/1K:1.8

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 1w

Canonical URL

Open Graph2/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

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.

67/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

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

14/15

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.

32/100

413 mg

CO₂e / view

4.0 MB

Page Weight

15%

Cleaner Than

New Visitor

472 mg

Returning (cached)

236 mg

Annual (10K/mo)

49.6 kg

Emission Segments

Data Center

20 mg

Network

121 mg

Device

272 mg

Resource Breakdown

JavaScript

226.5 KB

Images

2.7 MB

CSS

1.0 MB

Fonts

3.8 KB

HTML

22.1 KB

Green Hosting Verified

Hetzner Online GmbH

GWF Verified

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

36%Critical

Interactive

HTTPS

No WAF

83d

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

25.05.2026

Valid Until

23.08.2026

Subject Alternative Names (2)

aivc.orgwww.aivc.org

SHA-256 Fingerprint

75:09:14:2E:BA:59:19:9D:D9:17:00:FC:6F:2F:F4:F9:47:AB:5F:6B...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-language

content-type

text/html; charset=utf-8

date

Sun, 31 May 2026 20:54:41 GMT

expires

Sun, 19 Nov 1978 05:00:00 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

avas.cloudemail.be

avas-backup.cloudemail.be

Domain Information

aivc.org

Domain Age

32y 7m

Created

15.10.1993

Expires

14.10.2026

Last Updated

15.12.2025

Registrar

Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

70/100

Mobile Friendly6 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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Open Sans + Arial

WCAG Partial

59/100

Readability

/30

19/30

14px · LH 1.57

Hierarchy

/20

7/20

WCAG

/25

14/25

4.48:1 min contrast

Performance

/25

19/25

System fonts

Heading Font

Open Sans

Sans

Body Font

Arial

Sans14px

Contrast Ratio

4.48:1

4 issues

Reading Comfort

Dual Sans-Serif

left aligned

27px

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

✅ Optimal line spacing: 1.57 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 4.5:1).

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

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

GGoogle Fonts

Color Palette

10 unique colors

13.85:1 AAA Light

#ffffff

Background· 30.599999999999998%

#302c28

Secondary· 4.4%

#d5dde5

Secondary· 8%

#9a5150

Secondary· 7.1%

#852f3c

Primary· 6.3%

#9daeb8

Secondary· 5%

#c7bbb5

Secondary· 5%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Social Media

ShareThisFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

16 Resources

Scripts

Styles

Async

Defer

Top Script Sources

aivc.org(8)googletagmanager.com(1)

Website Identity

aivc.org

32 years old

Location detected: 🇫🇮 Finlandvia ip

Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USAen

Social Profiles

LinkedIn YouTube Bluesky

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Last analyzed: 31 May 2026 at 20:54

Historical Analysis & Change Tracking