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parabola.nu

https://parabola.nu· First analyzed 19 May 2026· Updated 19 May 2026
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parabola.nu
Desktop screenshot of parabola.nu
Mobile screenshot of parabola.nu
Mobile

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Hosting Provider

The 1984 ehf

IP Address

93.95.226.249

Site Location

🇮🇸 Icelandvia ip

Server Location

🇮🇸 Reykjavik, Iceland

ASN

AS44925

Server

Nginx

Nameservers

ns4.he.net.ns1.he.net.ns5.he.net.ns3.he.net.+1 more

Performance

100

Core Web Vitals

Weight

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

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
The 1984 ehf

Technology Stack

3 Technologies Detected

Libraries

1
jQueryv1.8.3

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Nginxv1.30.0

SEO Analysis

D59/100
18
7
2
Meta Tags4/15
Content12/12
Headings8/8
Technical14/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
P
parabola.nuparabola.nu

Parabola GNU/Linux-libre

No description available for this page.

Title Length24 chars

Recommended: 50-60 chars (~142px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

10 URLs

10 sub-sitemaps

robots.txt

30 rules

Local SEO

Local Search Readiness

5/100
Poor
2 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

F37/100
Bot Access
10/25
Machine Read.
13/25
Schema Data
3/25
Citation
11/25

AI Bot Access

5/14 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
blockquotescode blocksdef. lists
Text ratio:25%
Words:831
Token eff.:Optimal
Sections/1K:4.8
Depth:3/5

Structured Data

1 JSON-LD
WebSiteSearchAction

Citation Readiness

Opening Summary32w
Descriptive Headingsavg 3.8w
Canonical URL
Open Graph0/3
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

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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
10
Passed
3
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
14/20
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
1/15
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.
61/100
A+
14 mg
CO₂e / view
112.2 KB
Page Weight
95%
Cleaner Than
New Visitor
16 mg
vs
Returning (cached)
8 mg
Annual (10K/mo)
1.7 kg
Emission Segments
Data Center
3 mg
Network
3 mg
Device
7 mg
Resource Breakdown
JavaScript
40.2 KB
Images
52.8 KB
CSS
12.1 KB
HTML
7.1 KB
Green Hosting Not Verified
The 1984 ehf
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

56%Poor
Interactive

HTTPS

No WAF

69d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

28.04.2026

Valid Until

27.07.2026

Subject Alternative Names (20)

config.parabola.nuconfig.parabolagnulinux.orgforum.parabola.nugit.parabola.nugit.parabolagnulinux.orglists.parabola.nulists.parabolagnulinux.orgparabola.nu+12 more

SHA-256 Fingerprint

02:09:E4:CE:7A:D4:59:08:F9:18:4F:D5:36:3D:79:97:51:53:18:B7...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🟡 307s(max-age=307)
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=utf-8
date
Tue, 19 May 2026 16:08:31 GMT
etag
W/"7db18ae4be88cc811123f908ef8526aa"
server
nginx/1.30.0
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

50

SPF
DKIM
DMARC

MX Records (1)

winston.parabola.nu

Domain Information

parabola.nu

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.
F
32/100
Not Mobile Friendly
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.
5 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

sans-serif

WCAG Partial
59/100
Readability
/30
13/30

13px · LH 1.40

Hierarchy
/20
18/20

2.46x ratio · ✓ H1→H6

WCAG
/25
14/25

1.61:1 min contrast

Performance
/25
14/25

0 fonts

Heading Font

sans-serif

Sans32px

Body Font

sans-serif

Sans13px

Contrast Ratio

1.61:1

23 issues

Reading Comfort

~44 CPL

Narrow lines
32px
h1
19px
h2
16px
h3
15px
h4
13px
p

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

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

⚠️ Hard to read: Flesch score 31/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 23 elements below WCAG AA threshold (min 1.6:1).

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

✅ Strong hierarchy: Headlines are 2.5x larger than body text.

Flesch 31

Color Palette

6 unique colors
Light
#c9cdd1
Border· 6%
#f5f9fc
Primary· 69.8%
#404160
Secondary· 7.4%
#a2b1b9
Secondary· 6.7%
#e5ecf1
Secondary· 5.4%
#7b7f93
Secondary· 4.6%

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

2 Resources

1
Scripts
1
Styles
0
Async
0
Defer

Top Script Sources

local(1)

Website Identity

parabola.nu

jvinet@zeroflux.org
Location detected: 🇮🇸 Icelandvia ip
en

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Last analyzed: 19 May 2026 at 16:08

Historical Analysis & Change Tracking