root-servers.org

https://root-servers.org· First analyzed 08 May 2026· Updated 08 May 2026

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root-servers.org

Mobile

Sponsored

Hosting Provider

Ripe NCC

IP Address

193.0.11.23

Site Location

🇳🇱 Netherlandsvia ip

Server Location

🇳🇱 Amsterdam, The Netherlands

ASN

AS3333

Organization

Ripe NCC

Server

Nginx

Nameservers

nnp.netnod.se.sec2.authdns.ripe.net.ns-ext.isc.org.jokulsa.asbyrgi.net.+2 more

Performance

100

Core Web Vitals

Weight

First Contentful Paint

463 ms10%

Speed Index

602 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

211 KB

22 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Ripe NCC

Technology Stack

3 Technologies Detected

CSS Frameworks

Tailwind CSS

Icon Libraries

Font Awesome

Web Servers

Nginx

SEO Analysis

D54/100

Meta Tags13/15

Content11/12

Headings1/8

Technical11/21

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

root-servers.orgroot-servers.org

Root Server Technical Operations Association

The 13 root name servers are operated by 12 independent organisations. You can find more information about each of these organisations by visiting their home...

Description truncated.

Title Length44 chars

Recommended: 50-60 chars (~264px / 580px)

Description Length162 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (18/22) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Local SEO

Local Search Readiness

8/100

Poor

3 12 2

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

Sponsored

AI & LLM Readiness

F31/100

Bot Access

20/25

Machine Read.

3/25

Schema Data

0/25

Citation

8/25

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:28%

Words:13,527

Token eff.:Excessive

Sections/1K:0.2

Structured Data

No Schema

Citation Readiness

Opening Summary19w

Descriptive Headingsavg 3.7w

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.

72/100

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

6/15

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.

57/100

A+

26 mg

CO₂e / view

210.6 KB

Page Weight

95%

Cleaner Than

New Visitor

30 mg

Returning (cached)

15 mg

Annual (10K/mo)

3.1 kg

Emission Segments

Data Center

6 mg

Network

6 mg

Device

14 mg

Resource Breakdown

JavaScript

77.8 KB

Images

3.7 KB

CSS

33.5 KB

Fonts

75.6 KB

HTML

20.1 KB

Green Hosting Not Verified

Ripe NCC

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

49%Poor

Interactive

HTTPS

No WAF

86d

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

05.05.2026

Valid Until

03.08.2026

Subject Alternative Names (2)

root-servers.orgrootservers-2.ripe.net

SHA-256 Fingerprint

E5:2D:88:AF:2C:A3:B8:0A:F6:9F:55:BB:5D:7E:EA:F6:9C:6A:65:BF...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟡 60s(max-age=60)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

cross-origin-opener-policy

same-origin

date

Fri, 08 May 2026 23:50:23 GMT

expires

Fri, 08 May 2026 23:51:22 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

v1.h4.root-servers.org

v1.h3.root-servers.org

Domain Information

root-servers.org

Domain Age

27y 6m

Created

12.11.1998

Expires

11.11.2031

Last Updated

26.09.2022

Registrar

CSL Computer Service Langenbach GmbH d/b/a joker.com

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.

58/100

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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Helvetica Neue

WCAG Partial

61/100

Readability

/30

20/30

14px · LH 1.43

Hierarchy

/20

6/20

WCAG

/25

16/25

3.34:1 min contrast

Performance

/25

19/25

System fonts

Heading Font

Helvetica Neue

Sans

Body Font

Helvetica Neue

Sans14px

Contrast Ratio

3.34:1

24 issues

Reading Comfort

~41 CPL

Narrow lines

24px

18px

14px

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

✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 41/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 24 elements below WCAG AA threshold (min 3.3:1).

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

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

Flesch 41

Color Palette

6 unique colors

Light

#ffffff

Background· 25.8%

#f1efe9

Primary· 37.699999999999996%

#abd3df

Secondary· 27%

#aebebb

Secondary· 4.1%

#d8e3e6

Secondary· 3.4%

#c6d9ce

Secondary· 1.8%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

5 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(3)

Website Identity

root-servers.org

[email protected]

27 years old

Location detected: 🇳🇱 Netherlandsvia ip

CSL Computer Service Langenbach GmbH d/b/a joker.comen

Sponsored

Last analyzed: 08 May 2026 at 23:50

Historical Analysis & Change Tracking