gmplib.org

https://gmplib.org· First analyzed 30 Apr 2026· Updated 30 Apr 2026

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gmplib.org

Mobile

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Hosting Provider

Vetenskapsradet / SUNET

IP Address

130.242.124.102

Site Location

🇸🇪 Swedenvia ip

Server Location

🇸🇪 Norsborg, Sweden

ASN

AS1653

Organization

Vetenskapsradet / SUNET

Server

Nginx

Nameservers

ns.gmplib.org.ns.adb-centralen.se.

Performance

Core Web Vitals

Weight

First Contentful Paint

713 ms10%

Speed Index

927 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

13 KB

4 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Vetenskapsradet / SUNET

Technology Stack

1 Technologies Detected

Web Servers

Nginxv1.24.0

SEO Analysis

D48/100

Meta Tags4/15

Content12/12

Headings1/8

Technical10/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

gmplib.orggmplib.org

The GNU MP Bignum Library

No description available for this page.

Title Length25 chars

Recommended: 50-60 chars (~159px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1
• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

11 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

12 rules

Local SEO

Local Search Readiness

3/100

Poor

1 14 2

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

Sponsored

AI & LLM Readiness

D42/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

0/25

Citation

11/25

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

blockquotescode blocks

Text ratio:56%

Words:1,828

Token eff.:Optimal

Sections/1K:4.9

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary38w

Descriptive Headingsavg 3.4w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

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.

67/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

7/20

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.

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.

60/100

A+

2 mg

CO₂e / view

12.6 KB

Page Weight

95%

Cleaner Than

New Visitor

2 mg

Returning (cached)

<0.001 g

Annual (10K/mo)

192 g

Emission Segments

Data Center

<0.001 g

Network

<0.001 g

Device

<0.001 g

Resource Breakdown

Images

3.7 KB

CSS

1.7 KB

HTML

7.2 KB

Green Hosting Not Verified

Vetenskapsradet / SUNET

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

43d

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/2

Valid From

15.03.2026

Valid Until

13.06.2026

Subject Alternative Names (2)

gmplib.orgwww.gmplib.org

SHA-256 Fingerprint

E5:E9:86:B1:C1:91:04:F9:FB:B7:04:0D:D2:50:02:B6:D0:8A:4F:33...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

content-encoding

📦 Gzip(gzip)

content-length

7101

content-type

text/html

date

Thu, 30 Apr 2026 06:19:57 GMT

etag

"68ab9473-1bbd"

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

smtp.gmplib.org

Domain Information

gmplib.org

Domain Age

19y 2m

Created

28.02.2007

Expires

28.02.2028

Last Updated

30.12.2025

Registrar

Gandi SAS

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.

33/100

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...

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Typography & Readability

arial + times

WCAG Partial

54/100

Readability

/30

18/30

15px · LH --

Hierarchy

/20

4/20

WCAG

/25

18/25

2.4:1 min contrast

Performance

/25

14/25

System fonts

Heading Font

arial

Sans

Body Font

times

Serif15px

Contrast Ratio

2.4:1

1 issue

Reading Comfort

Sans Headlines + Serif Body

justify aligned

21px

15px

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

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 2.4:1).

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

⚠️ Text justify detected: Justified text creates uneven word spacing, hurting readability on web.

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

Flesch 59

Color Palette

8 unique colors

2.71:1 Fail Light

#d0d0d0

Other· 58.099999999999994%

#747e7c

Other· 4.1%

#00e0e0

Primary· 19.600000000000005%

#33beb6

Accent· 2.8%

#3edbda

Accent· 0.8%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

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Scripts & Styles

1 Resources

Scripts

Styles

Async

Defer

Top Script Sources

Website Identity

gmplib.org

19 years old

Location detected: 🇸🇪 Swedenvia ip

Gandi SASen

Sponsored

Last analyzed: 30 Apr 2026 at 06:20

Historical Analysis & Change Tracking