isprs.org

https://isprs.org· First analyzed 03 May 2026· Updated 03 May 2026

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isprs.org

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Hosting Provider

UNI-STUTTGART

IP Address

141.58.125.71

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Stuttgart, Germany

ASN

AS553

Organization

UNI-STUTTGART

Server

Microsoft IIS

Nameservers

dns-auth3.uni-stuttgart.net.dns-auth1.uni-stuttgart.de.dns-auth2.uni-stuttgart.edu.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.1 s10%

Speed Index

1.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3.2 MB

91 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

UNI-STUTTGART

Technology Stack

10 Technologies Detected

Libraries

jQuery

jQuery UI

Animate.css

UI Components

Slick Carousel Fancybox

CSS Frameworks

Icon Libraries

Fonts

Web Servers

SEO Analysis

C63/100

Meta Tags13/15

Content11/12

Headings3/8

Technical15/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

isprs.orgisprs.org

International Society for Photogrammetry and Remote Sensing

Website of ISPRS - International Society for Photogrammetry and Remote Sensing

Title Length59 chars

Recommended: 50-60 chars (~363px / 580px)

Description Length78 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

9 issues found

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Crawlability

Sitemap

robots.txt

22 rules

Allows all crawlers

Local SEO

Local Search Readiness

9/100

Poor

3 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

F38/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

8/25

AI Bot Access

13/14 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:7%

Words:1,286

Token eff.:Optimal

Sections/1K:2.3

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary13w

Descriptive Headingsavg 3.9w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

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.

68/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

10/20

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

Forms & Inputs

10/15

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

4/15

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.

7/100

409 mg

CO₂e / view

3.2 MB

Page Weight

30%

Cleaner Than

New Visitor

467 mg

Returning (cached)

234 mg

Annual (10K/mo)

49.1 kg

Emission Segments

Data Center

91 mg

Network

98 mg

Device

219 mg

Resource Breakdown

JavaScript

255.3 KB

Images

654.7 KB

CSS

2.2 MB

Fonts

2.1 KB

HTML

141.3 KB

Green Hosting Not Verified

UNI-STUTTGART

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

82%Critical

No SSL

No WAF

N/A

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HTTP Headers

Developer Console

cache-control

🟣 Private(private)

content-length

144419

content-security-policy

default-src ‘self’; script-src ‘self’ https://cdnjs.cloudfla...

content-type

text/html; charset=utf-8

date

Sun, 03 May 2026 08:05:30 GMT

permissions-policy

geolocation=self, fullscreen=self

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

mxex1.tik.uni-stuttgart.de

mxex2.tik.uni-stuttgart.de

Domain Information

isprs.org

Domain Age

26y 7m

Created

15.09.1999

Expires

15.09.2027

Last Updated

28.04.2024

Registrar

Network Solutions, LLC

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.

72/100

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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Helvetica

WCAG Partial

50/100

Readability

/30

18/30

14px · LH 1.60

Hierarchy

/20

7/20

WCAG

/25

14/25

1.69:1 min contrast

Performance

/25

11/25

2 fonts · 5 req

Heading Font

Helvetica

Sans

Body Font

Helvetica

Sans14px

Contrast Ratio

1.69:1

21 issues

Reading Comfort

~39 CPL

Narrow lines

28px

18px

14px

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

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 17/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 21 elements below WCAG AA threshold (min 1.7:1).

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

✅ Lean font stack: 2 font families keeps load times fast.

GGoogle Fonts Buy on MyFontsFlesch 17

Color Palette

8 unique colors

17.9:1 AAA Light

#ffffff

Background· 60.2%

#181716

Text· 11.5%

#273440

Primary· 4.2%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

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Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(19)cdnjs.cloudflare.com(1)

Website Identity

isprs.org

[email protected]

26 years old

ISPRSc/oLeibniz University HannoverInstitute of Photogrammetry and GeoInformationNienburger Str. 1D-30167 HannoverGERMAN

Location detected: 🇩🇪 Germanyvia ip

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Last analyzed: 03 May 2026 at 08:05

Historical Analysis & Change Tracking