netlib.org

https://netlib.org· First analyzed 25 Apr 2026· Updated 25 Apr 2026

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netlib.org

Mobile

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Hosting Provider

University of Tennessee

IP Address

160.36.239.231

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Knoxville, United States

ASN

AS3450

Organization

University of Tennessee

Server

Nginx

Nameservers

ns0.utk.edu.ns1.utk.edu.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

292 ms10%

Speed Index

380 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

11 KB

4 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

University of Tennessee

Technology Stack

2 Technologies Detected

Analytics

Google Analytics

Web Servers

Nginxv1.29.0

SEO Analysis

D45/100

Meta Tags4/15

Content8/12

Headings6/8

Technical6/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

netlib.orgnetlib.org

The Netlib

No description available for this page.

Title Length10 chars

Recommended: 50-60 chars (~57px / 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)

12 issues found

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Crawlability

Sitemap

robots.txt

8 rules

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

F26/100

Bot Access

20/25

Machine Read.

5/25

Schema Data

0/25

Citation

1/25

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:22%

Words:124

Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

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.

71/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

11/20

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.

49/100

A+

1 mg

CO₂e / view

11.0 KB

Page Weight

95%

Cleaner Than

New Visitor

2 mg

Returning (cached)

<0.001 g

Annual (10K/mo)

168 g

Emission Segments

Data Center

<0.001 g

Network

<0.001 g

Device

<0.001 g

Resource Breakdown

Images

6.8 KB

HTML

4.1 KB

Green Hosting Not Verified

University of Tennessee

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

76%Good

Static / Informational

HTTPS

No WAF

36d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

02.03.2026

Valid Until

31.05.2026

Subject Alternative Names (2)

netlib.orgwww.netlib.org

SHA-256 Fingerprint

C0:DC:48:6C:38:FC:6C:0F:22:D5:15:B7:41:79:FA:D0:34:15:D4:7A...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

content-type

text/html; charset=UTF-8

date

Sat, 25 Apr 2026 09:20:31 GMT

server

nginx/1.29.0

strict-transport-security

max-age=31536000

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

netlib-org.mail.protection.outlook.com

Domain Information

netlib.org

Domain Age

32y 2m

Created

04.03.1994

Expires

05.03.2027

Last Updated

09.01.2026

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

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.

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Times New Roman

WCAG AAA

78/100

Readability

/30

21/30

16px · LH --

Hierarchy

/20

19/20

2x ratio · ✓ H1→H6

WCAG

/25

24/25

9.4:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Times New Roman

Serif32px

Body Font

Times New Roman

Serif16px

Contrast Ratio

9.4:1

WCAG AAA (≥7:1)

Reading Comfort

Single Font Family

left aligned

32px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

❌ Very complex text: Flesch score 26/100. Consider shorter sentences and simpler words.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 9.4:1).

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

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFontsFlesch 26

Color Palette

10 unique colors

Light

#ffffff

Background· 89.3%

#cfd0dc

Primary· 2.1%

#202530

Secondary· 1.7%

#b0b1cb

Secondary· 1.3%

#7c849e

Secondary· 1.2%

#9896bd

Secondary· 1%

#94a9ad

Secondary· 1%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

1 Resources

Scripts

Styles

Async

Defer

Top Script Sources

google-analytics.com(1)

Website Identity

netlib.org

32 years old

Location detected: 🇺🇸 United Statesvia ip

Network Solutions, LLC📧 Microsoft 365

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Last analyzed: 25 Apr 2026 at 09:20

Historical Analysis & Change Tracking