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altumco.de

https://altumco.de· First analyzed 10 May 2026· Updated 10 May 2026
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altumco.de
Desktop screenshot of altumco.de
Mobile screenshot of altumco.de
Mobile

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Hosting Provider

Hetzner
hetzner.com

IP Address

178.156.142.190

Site Location

🇩🇪 Germanyvia tld

Server Location

🇺🇸 Ashburn, United States

ASN

AS213230

Organization

HETZNER-DC

Server

Apache

Nameservers

ns2.digitalocean.com.ns1.digitalocean.com.ns3.digitalocean.com.

Performance

98

Core Web Vitals

Weight

First Contentful Paint
864 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
517 KB
11 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
Infrastructure
Hosting
Hetzner

Technology Stack

4 Technologies Detected

CSS Frameworks

2
Bootstrap
Tailwind CSS

Icon Libraries

1
Font Awesome

Web Servers

1
Apache

SEO Analysis

D52/100
18
4
3
Meta Tags4/15
Content0/12
Headings6/8
Technical22/25
E-E-A-T0/7
Images4/7
Links2/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability0/3
A
altumco.dealtumco.de

Sign in - altumco.de

No description available for this page.

Title Length20 chars

Recommended: 50-60 chars (~118px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

  • • Missing meta description — important for click-through rates in SERPs
  • • Very thin content (13 words). Search engines need substantial content for ranking.
  • • Page is set to noindex — will not appear in search results

7 issues found

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Crawlability

Sitemap

Type: index

1 URLs

1 sub-sitemaps

robots.txt

6 rules

Sitemap reference found

Local SEO

Local Search Readiness

11/100
Poor
3 12 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

F17/100
Bot Access
3/25
Machine Read.
6/25
Schema Data
1/25
Citation
7/25

AI Bot Access

0/14 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:0%
Words:9
Token eff.:Too Short

Structured Data

1 JSON-LD
BreadcrumbList

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph2/3
Twitter Card2/3
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.
B
74/100
11
Passed
2
Critical
1
Warnings
Images & Alt Text
18/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
16/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
13/15
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
3/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •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.
68/100
A
52 mg
CO₂e / view
516.6 KB
Page Weight
90%
Cleaner Than
New Visitor
60 mg
vs
Returning (cached)
30 mg
Annual (10K/mo)
6.3 kg
Emission Segments
Data Center
3 mg
Network
15 mg
Device
34 mg
Resource Breakdown
JavaScript
319.1 KB
Images
164.2 KB
CSS
31.5 KB
HTML
1.9 KB
Green Hosting Verified
Hetzner
Provider Match
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

30%Critical
Critical / Transactional

HTTPS

No WAF

47d

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/1.1

Valid From

29.03.2026

Valid Until

27.06.2026

Subject Alternative Names (2)

altumco.dewww.altumco.de

SHA-256 Fingerprint

B2:6B:F4:F5:3B:19:5D:92:46:C9:B9:A1:A2:F1:20:DC:FF:F2:5B:28...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-store, no-cache, must-revalidate)
connection
Keep-Alive
content-encoding
⚡ Brotli(br)
content-length
1611
content-security-policy
frame-ancestors 'none';
content-type
text/html; charset=UTF-8
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

55

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

Domain Information

altumco.de

Last Updated

26.03.2020

DNSSEC
Not Enabled

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.
C
66/100
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, shrink-to-fit=no
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

-apple-system

WCAG AA
81/100
Readability
/30
26/30

16px · LH 1.50

Hierarchy
/20
13/20

1.25x ratio · ✓ H1→H6

WCAG
/25
22/25

4.53:1 min contrast

Performance
/25
20/25

System fonts

Heading Font

-apple-system

Sans20px

Body Font

-apple-system

Sans16px

Contrast Ratio

4.53:1

WCAG AA (≥4.5:1)

Reading Comfort

Single Font Family

left aligned
20px
h1

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.5:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

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

Color Palette

4 unique colors
Light
#fcfefd
Background· 96.89999999999999%
#4c71ff
Primary· 1.7%
#deeaf7
Accent· 0.8%
#93a8e6
Accent· 0.4%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

9 Resources

7
Scripts
2
Styles
0
Async
0
Defer

Top Script Sources

altumco.de(7)

Website Identity

altumco.de

Location detected: 🇩🇪 Germanyvia tld
en

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Last analyzed: 10 May 2026 at 18:00

Historical Analysis & Change Tracking