StackOptic
Back to Search
slm.de favicon

slm.de

https://slm.de· First analyzed 14 May 2026· Updated 14 May 2026
Export
slm.de
Desktop screenshot of slm.de
Mobile screenshot of slm.de
Mobile

Sponsored

Hosting Provider

Cloudflare
cloudflare.com

IP Address

172.67.75.74

Site Location

🇩🇪 Germanyvia phone

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

george.ns.cloudflare.com.ophelia.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
503 ms10%
Speed Index
654 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.9 MB
144 requests

Image Optimization

ResponsiveUploadcare
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Technology Stack

11 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
PostHog

CSS Frameworks

2
Bootstrap
Tailwind CSS

Meta Frameworks

1
SvelteKit

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Reviews

1
Trustpilot

CDN

1
Cloudflare

Libraries

1
Lightbox

SEO Analysis

D53/100
16
8
3
Meta Tags8/15
Content9/12
Headings3/8
Technical14/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability0/3
S
slm.deslm.de

Günstig Last Minute buchen ☀️ Entdecke Flug & Hotel Deals auf der g...

Weltweit günstig verreisen: Top Deals für Flug & Hotel – perfekt für Strandferien, Städtereisen oder Fernziele. Jetzt Angebote entdecken und entspannt losfli...

Title truncated. Description truncated.
Title Length89 chars

Recommended: 50-60 chars (~548px / 580px)

Description Length162 chars

Recommended: 120-160 chars

Issues (3)

  • • Title is too long (89 chars, ~548px). Will be truncated in search results.
  • • Most images missing alt text (11/18) — critical for accessibility and SEO
  • • Page is set to noindex — will not appear in search results

11 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

1 URLs

1 sub-sitemaps

robots.txt

10 rules

Sitemap reference found

Local SEO

Local Search Readiness

10/100
Poor
3 12 2

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

Sponsored

AI & LLM Readiness

D50/100
Bot Access
20/25
Machine Read.
16/25
Schema Data
0/25
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.txtinvalid
llms-full.txt
Semantic HTML
Heading Hierarchy
nav
Text ratio:4%
Words:878
Token eff.:Optimal
Sections/1K:33
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary26w
Descriptive Headingsavg 6.9w
Canonical URL
Open Graph3/3
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.
B
79/100
11
Passed
3
Critical
1
Warnings
Images & Alt Text
20/20
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
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
5/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 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.
54/100
C
200 mg
CO₂e / view
1.9 MB
Page Weight
50%
Cleaner Than
New Visitor
228 mg
vs
Returning (cached)
114 mg
Annual (10K/mo)
24.0 kg
Emission Segments
Data Center
10 mg
Network
59 mg
Device
131 mg
Resource Breakdown
JavaScript
1.9 MB
Images
4.8 KB
CSS
31.4 KB
Fonts
1.1 KB
HTML
35.6 KB
Green Hosting Verified
Cloudflare
GWF Verified
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

71%Good
Interactive

HTTPS

WAF

54d

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

09.04.2026

Valid Until

08.07.2026

Subject Alternative Names (2)

*.slm.deslm.de

SHA-256 Fingerprint

5B:1E:41:98:6C:0F:C6:85:4D:36:B9:75:DD:0D:70:2F:F2:48:5A:6B...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

cf-cache-status
DYNAMIC
cf-ray🇫🇷 Paris
9fbc0d681bb8d0a8-CDG
content-encoding
⚡ Brotli(br)
content-security-policy
default-src 'self'; frame-src https://js.stripe.com https://...
content-type
text/html
date
Thu, 14 May 2026 18:44:07 GMT
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

70

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

slm-de.mail.protection.outlook.com

Domain Information

slm.de

Last Updated

09.04.2026

DNSSEC
Not Enabled

Privacy & Compliance

Usercentrics

Cookie Consent Banner
Usercentrics
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Usercentrics
Privacy policy page linked

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
70/100
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
72/100
Readability
/30
20/30

16px · LH 1.25

Hierarchy
/20
14/20

1.75x ratio

WCAG
/25
16/25

1:1 min contrast

Performance
/25
22/25

System fonts

Heading Font

-apple-system

Sans28px

Body Font

-apple-system

Sans16px

Contrast Ratio

1:1

21 issues

Reading Comfort

~34 CPL

Narrow lines
28px
h1
24px
h3
16px
p

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

⚠️ Tight line spacing (1.25). Increase to 1.4–1.6 for better readability.

⚠️ Partial contrast: 21 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

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

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

GGoogle FontsFlesch 56

Color Palette

10 unique colors
Light
#ffffff
Background· 39.800000000000004%
#fe0000
Primary· 15%
#bfd6e8
Primary· 8.7%
#6baddc
Accent· 7.1%
#6081a4
Secondary· 6.3%
#9cb1bf
Secondary· 6%
#e8edf1
Secondary· 5.6%
#9e1e37
Accent· 1.2%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Reviews & Social Proof

1
TrustpilotMid-Market

Customer reviews and testimonials

2

Categories

3

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Well-developed marketing technology stack

Sponsored

Scripts & Styles

24 Resources

14
Scripts
10
Styles
11
Async
0
Defer

Top Script Sources

web.cmp.usercentrics.eu(8)eu-assets.i.posthog.com(3)googletagmanager.com(2)widget.trustpilot.com(1)

Website Identity

slm.de

+49(0)77343069951
Location detected: 🇩🇪 Germanyvia phone
📧 Microsoft 365de

Sponsored

Last analyzed: 14 May 2026 at 18:44

Historical Analysis & Change Tracking