isca-archive.org

https://isca-archive.org· First analyzed 24 May 2026· Updated 24 May 2026

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isca-archive.org

Mobile

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Hosting Provider

IONOS (1&1)

ionos.com

IP Address

217.160.0.7

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Essen, Germany

ASN

AS8560

Organization

Ionos Inf

Server

PythonAnywhere

Nameservers

ns1072.ui-dns.com.ns1025.ui-dns.de.ns1050.ui-dns.biz.ns1120.ui-dns.org.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.2 s10%

Speed Index

1.6 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

4 MB

15 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

IONOS (1&1)

Technology Stack

4 Technologies Detected

Libraries

CSS Frameworks

Icon Libraries

Languages

SEO Analysis

D50/100

Meta Tags4/15

Content12/12

Headings5/8

Technical8/21

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

isca-archive.orgisca-archive.org

ISCA Archive

No description available for this page.

Title Length12 chars

Recommended: 50-60 chars (~70px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description — important for click-through rates in SERPs

11 issues found

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Local SEO

Local Search Readiness

0/100

Poor

15 2

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

Sponsored

AI & LLM Readiness

F36/100

Bot Access

20/25

Machine Read.

9/25

Schema Data

0/25

Citation

7/25

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

Text ratio:18%

Words:2,578

Token eff.:Optimal

Sections/1K:0.8

Structured Data

No Schema

Citation Readiness

Opening Summary23w

Descriptive Headingsavg 7.5w

Canonical URL

Open Graph0/3

Twitter Card0/3

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.

66/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

8/20

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

Forms & Inputs

7/15

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

7/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

9/15

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.

34/100

412 mg

CO₂e / view

4.0 MB

Page Weight

15%

Cleaner Than

New Visitor

471 mg

Returning (cached)

235 mg

Annual (10K/mo)

49.4 kg

Emission Segments

Data Center

20 mg

Network

121 mg

Device

271 mg

Resource Breakdown

JavaScript

64.6 KB

Images

140.2 KB

CSS

14.3 KB

HTML

19.1 KB

Other

3.7 MB

Green Hosting Verified

IONOS SE

GWF Verified

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

82d

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/1.1

Valid From

16.05.2026

Valid Until

14.08.2026

Subject Alternative Names (1)

www.isca-archive.org

SHA-256 Fingerprint

F0:1B:B8:5F:D5:7B:FD:3D:CD:EC:FB:F6:06:EC:80:8D:03:BB:F2:B6...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-type

text/html

date

Sun, 24 May 2026 00:58:59 GMT

last-modified

Fri, 15 May 2026 06:57:17 GMT

server

PythonAnywhere

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx00.ionos.fr

mx01.ionos.fr

Domain Information

isca-archive.org

Domain Age

2y 5m

Created

11.12.2023

Expires

11.12.2026

Last Updated

25.01.2026

Registrar

IONOS SE

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.

53/100

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

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Arial

WCAG Partial

67/100

Readability

/30

19/30

15px · LH 1.50

Hierarchy

/20

12/20

2.4x ratio

WCAG

/25

17/25

2.94:1 min contrast

Performance

/25

19/25

System fonts

Heading Font

Arial

Sans36px

Body Font

Arial

Sans15px

Contrast Ratio

2.94:1

40 issues

Reading Comfort

~37 CPL

Narrow lines

36px

18px

20px

15px

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

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

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 40 elements below WCAG AA threshold (min 2.9:1).

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

✅ Strong hierarchy: Headlines are 2.4x larger than body text.

Flesch 0

Color Palette

9 unique colors

Light

#acb1ae

Other· 6.1%

#f7f8fa

Primary· 60.6%

#39566f

Secondary· 6%

#c1cdca

Secondary· 5.6%

#dfded8

Border· 5.3%

#657783

Secondary· 4.7%

#4f4147

Secondary· 3.6%

#1f2f44

Secondary· 2.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

9 Resources

Scripts

Styles

Async

Defer

Top Script Sources

..(4)

Website Identity

isca-archive.org

2 years old

Location detected: 🇩🇪 Germanyvia ip

IONOS SE

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Last analyzed: 24 May 2026 at 00:59

Historical Analysis & Change Tracking