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ndltd.org

https://ndltd.org· First analyzed 28 Apr 2026· Updated 28 Apr 2026
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ndltd.org
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Mobile

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Hosting Provider

DigitalOcean
digitalocean.com

IP Address

157.245.120.212

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Clifton, United States

ASN

AS14061

Organization

DigitalOcean, LLC

Server

Apache

Nameservers

ns1.vtlibraries.com.ns2.vtlibraries.com.ns3.vtlibraries.com.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
803 ms10%
Speed Index
1.0 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
474 KB
32 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms
GeneratePressv3.6.1
by Tom Usborne
View Theme

Technology Stack

13 Technologies Detected

Plugins

9
MemberpressWp Show PostsPojo AccessibilityGp PremiumVideo Conferencing With Zoom ApiLightweight Social IconsThe Events Calendar
Wpforms User Journey
Yoast SEO

Libraries

1
jQueryv3.7.1

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Web Servers

1
Apache

SEO Analysis

B72/100
20
6
2
Meta Tags8/15
Content10/12
Headings3/8
Technical21/25
E-E-A-T2/7
Images4/7
Links5/5
URL5/5
Social4/5
Freshness4/4
Mobile3/4
Indexability3/3
N
ndltd.orgndltd.org

Networked Digital Library of Theses and Dissertations - NDLTD is an...

NDLTD is an international organization dedicated to promoting the adoption, creation, use, dissemination, and preservation of electronic theses and dissertat...

Title truncated. Description truncated.
Title Length225 chars

Recommended: 50-60 chars (~1339px / 580px)

Description Length169 chars

Recommended: 120-160 chars

Issues (2)

  • • Title is too long (225 chars, ~1339px). Will be truncated in search results.
  • • Missing H1 tag — every page should have exactly one H1

8 issues found

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Crawlability

Sitemap

Type: index

9 URLs

9 sub-sitemaps

robots.txt

3 rules

Local SEO

Local Search Readiness

15/100
Poor
4 13

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

D51/100
Bot Access
20/25
Machine Read.
10/25
Schema Data
8/25
Citation
13/25

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
nav
Text ratio:3%
Words:539
Token eff.:Optimal
Sections/1K:9.3
Depth:1/5

Structured Data

4 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction
sameAs entity links

Citation Readiness

Opening Summary14w
Descriptive Headingsavg 3.8w
Canonical URL
Open Graph2/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
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.
A
82/100
13
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
13/20
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
12/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
7/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •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.
75/100
A
48 mg
CO₂e / view
473.9 KB
Page Weight
90%
Cleaner Than
New Visitor
55 mg
vs
Returning (cached)
27 mg
Annual (10K/mo)
5.7 kg
Emission Segments
Data Center
2 mg
Network
14 mg
Device
32 mg
Resource Breakdown
JavaScript
166.4 KB
Images
14.3 KB
CSS
263.4 KB
Fonts
4.7 KB
HTML
25.1 KB
Green Hosting Verified
DigitalOcean
Provider Match
1 recommendation
  • •Carbon footprint recommendation preview...
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A

Security Score

81%Very Good
Interactive

HTTPS

No WAF

89d

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

28.04.2026

Valid Until

27.07.2026

Subject Alternative Names (4)

*.ndltd.vt.domainsndltd.orgndltd.vt.domainswww.ndltd.org

SHA-256 Fingerprint

69:7A:A5:BB:3C:F3:4D:94:E6:42:AA:4B:06:29:BB:E0:8E:E0:FF:59...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🟡 3s(max-age=3, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-length
25444
content-security-policy
upgrade-insecure-requests
content-type
text/html; charset=UTF-8
date
Tue, 28 Apr 2026 14:29:02 GMT
Good Warning Issue

Email Infrastructure

Google Workspace

Score

90

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

aspmx.l.google.com
alt1.aspmx.l.google.com
alt2.aspmx.l.google.com
alt4.aspmx.l.google.com

+1 more

Domain Information

ndltd.org

Domain Age
29y 1m

Created

02.04.1997

Expires

03.04.2027

Last Updated

06.02.2026

Registrar

Gandi SAS

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

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.
B
72/100
Mobile Friendly19 breakpoints
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

Montserrat + Roboto

WCAG AA
77/100
Readability
/30
25/30

17px · LH 1.50

Hierarchy
/20
8/20
WCAG
/25
23/25

5.21:1 min contrast

Performance
/25
21/25

System fonts

Heading Font

Montserrat

Sans

Body Font

Roboto

Sans17px

Contrast Ratio

5.21:1

WCAG AA (≥4.5:1)

Reading Comfort

~34 CPL

Narrow lines
30px
h2
24px
h4
17px
p

✅ Excellent readability: 17px body text is ideal for all devices.

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

❌ Very complex text: Flesch score 25/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.2:1).

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

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

GGoogle FontsBuy on MyFontsFluid Type (rem)Flesch 25

Color Palette

6 unique colors
2.09:1 Fail Light
#ffffff
Background· 47.699999999999996%
#afb4b9
Other· 4.6%
#0b2241
Primary· 38.8%
#66798d
Secondary· 3.9%
#314463
Secondary· 2.7%

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

23 Resources

13
Scripts
10
Styles
0
Async
1
Defer

Top Script Sources

ndltd.org(12)cdn.gtranslate.net(1)

Website Identity

Networked Digital Library of Theses and Dissertations

Networked Digital Library of Theses and Dissertations

Organization

NDLTD is an international organization dedicated to promoting the adoption, creation, use, dissemination, and preservation of electronic theses and dissertations (ETDs).

ndltd.org/
29 years old
Location detected: 🇺🇸 United Statesvia ip
Gandi SAS📧 Google Workspaceen

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Last analyzed: 28 Apr 2026 at 14:29

Historical Analysis & Change Tracking