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jenoptik.com

https://jenoptik.com· First analyzed 12 May 2026· Updated 12 May 2026
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jenoptik.com
Desktop screenshot of jenoptik.com
Mobile screenshot of jenoptik.com
Mobile

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Hosting Provider

Oevermann Networks GmbH

IP Address

87.79.4.123

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Cologne, Germany

ASN

AS8422

Organization

Oevermann Networks GmbH

Nameservers

ns17.domserver.de.ns16.domserver.de.ns1.jenoptik.com.ns2.jenoptik.com.

Performance

90

Core Web Vitals

Weight

First Contentful Paint
1.4 s10%
Speed Index
1.9 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.4 MB
40 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
HubSpot CMS

Technology Stack

2 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Marketing

1
HubSpot

SEO Analysis

B73/100
23
5
1
Meta Tags9/15
Content10/12
Headings6/8
Technical19/25
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social5/5
Freshness2/4
Mobile4/4
Indexability3/3
J
jenoptik.comjenoptik.com

Technology Partner for Optics, Photonics and Optoelectronics | Jeno...

The world is changing at light speed. We focus on optical technologies and use the potential of light to advance our customers in global markets!

Title truncated.
Title Length71 chars

Recommended: 50-60 chars (~428px / 580px)

Description Length145 chars

Recommended: 120-160 chars

Issues (1)

  • • Title is too long (71 chars, ~428px). Will be truncated in search results.

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

1 URLs

1 sub-sitemaps

robots.txt

7 rules

Sitemap reference found

Local SEO

Local Search Readiness

15/100
Poor
5 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

D44/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
17/25

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
data-nosnippet

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
Text ratio:2%
Words:879
Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary143w
Descriptive Headingsavg 7.2w
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...
Upgrade to view recommendations

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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.
A
82/100
13
Passed
2
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
17/20
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
7/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 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.
63/100
B
143 mg
CO₂e / view
1.4 MB
Page Weight
60%
Cleaner Than
New Visitor
163 mg
vs
Returning (cached)
82 mg
Annual (10K/mo)
17.1 kg
Emission Segments
Data Center
7 mg
Network
42 mg
Device
94 mg
Resource Breakdown
JavaScript
458.5 KB
Images
345.7 KB
CSS
503.0 KB
Fonts
54.3 KB
HTML
49.2 KB
Other
654 B
Green Hosting Verified
NetCologne GmbH
GWF Verified
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A

Security Score

86%Very Good
Interactive

HTTPS

No WAF

144d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

19.03.2026

Valid Until

03.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

www.jenoptik.comextranet.jenoptik.comfocus.jenoptik.comjenoptik.cajenoptik.chjenoptik.co.jpjenoptik.co.krjenoptik.com+12 more

SHA-256 Fingerprint

E9:15:F5:9A:2C:B1:E7:48:EC:A9:9E:AE:77:5E:69:70:60:06:91:C3...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-cache, no-store)
content-encoding
📦 Gzip(gzip)
content-length
50085
content-security-policy
default-src 'self' https://cdn.consentmanager.mgr.consensu.o...
content-type
text/html; charset=utf-8
date
Tue, 12 May 2026 18:50:21 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

75

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mailgw2.jenoptik.com
mailgw1.jenoptik.com

Domain Information

jenoptik.com

Domain Age
28y 11m

Created

12.06.1997

Expires

11.06.2026

Last Updated

12.06.2025

Registrar

InterNetX GmbH

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
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
78/100
Mobile Friendly26 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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Nunito Sans

WCAG Partial
76/100
Readability
/30
25/30

18px · LH 1.40

Hierarchy
/20
14/20

1.56x ratio · ✓ H1→H6

WCAG
/25
17/25

4.43:1 min contrast

Performance
/25
20/25

1 font · 1 req

Heading Font

Nunito Sans

Sans28px

Body Font

Nunito Sans

Sans18px

Contrast Ratio

4.43:1

1 issue

Reading Comfort

~37 CPL

Narrow lines
28px
h1
70px
h2
18px
h3
18px
p
Augmented Fourth
Scale

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 38/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 4.4:1).

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

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

Buy on MyFontsFluid Type (rem)Flesch 38

Color Palette

9 unique colors
Light
#ffffff
Background· 45.6%
#140d2f
Primary· 20.5%
#d152a7
Accent· 7.2%
#2a4f9e
Accent· 6.5%
#af81b6
Secondary· 4.1%
#8942a1
Secondary· 3.3%
#9f3287
Accent· 2.6%

Business & Marketing Stack

3 Tools Detected

Enterprise

CRM Systems

1
HubSpotMid-Market

Customer Relationship Management platforms

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

1
CookiebotMid-Market

Cookie consent and privacy compliance tools

3

Categories

3

Total Tools

0

Enterprise

2

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

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Scripts & Styles

20 Resources

18
Scripts
2
Styles
11
Async
0
Defer

Top Script Sources

local(8)js-eu1.hs-scripts.com(2)cdn.consentmanager.net(2)js-eu1.hs-banner.com(1)js-eu1.hs-analytics.net(1)

Website Identity

jenoptik.com

28 years old
Location detected: 🇩🇪 Germanyvia ip
InterNetX GmbHen-GB

Sponsored

Last analyzed: 12 May 2026 at 18:50

Historical Analysis & Change Tracking