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nationalhistoricships.org.uk

https://nationalhistoricships.org.uk· First analyzed 01 Jun 2026· Updated 01 Jun 2026
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nationalhistoricships.org.uk
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Mobile

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Hosting Provider

Positive Infrastructure

IP Address

80.87.128.100

Site Location

🇬🇧 United Kingdomvia tld

Server Location

🇬🇧 London, United Kingdom

ASN

AS21260

Organization

Positive Infrastructure

Server

Nginx

CDN

CDN

Nameservers

ns23.domaincontrol.com.ns24.domaincontrol.com.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
698 ms10%
Speed Index
907 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.2 MB
47 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupal

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

6 Technologies Detected

CSS Frameworks

2
Tailwind CSS
Bootstrap

Icon Libraries

1
Font Awesome

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

SEO Analysis

C64/100
18
7
1
Meta Tags7/15
Content11/12
Headings6/8
Technical18/25
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
N
nationalhistoricships.org.uknationalhistoricships.org.uk

Home | National Historic Ships

No description available for this page.

Title Length30 chars

Recommended: 50-60 chars (~175px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing meta description — important for click-through rates in SERPs

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

2 URLs

2 sub-sitemaps

robots.txt

69 rules

Sitemap reference found

Local SEO

Local Search Readiness

7/100
Poor
2 14 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

D46/100
Bot Access
20/25
Machine Read.
15/25
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.txtinvalid
llms-full.txt
Semantic HTML
Heading Hierarchy
navheader/footer
Text ratio:5%
Words:510
Token eff.:Optimal
Sections/1K:27.5
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary157w
Descriptive Headingsavg 3.3w
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.
A
82/100
13
Passed
2
Critical
2
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
15/20
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
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
4/15
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.
56/100
D
230 mg
CO₂e / view
2.2 MB
Page Weight
50%
Cleaner Than
New Visitor
263 mg
vs
Returning (cached)
131 mg
Annual (10K/mo)
27.6 kg
Emission Segments
Data Center
11 mg
Network
68 mg
Device
151 mg
Resource Breakdown
JavaScript
127.7 KB
Images
2.0 MB
CSS
82.2 KB
HTML
11.9 KB
Green Hosting Verified
The Positive Internet Company Ltd.
GWF Verified
4 recommendations
  • •Carbon footprint recommendation preview...
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D

Security Score

41%Poor
Interactive

HTTPS

No WAF

87d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

30.05.2026

Valid Until

28.08.2026

Subject Alternative Names (2)

nationalhistoricships.org.ukwww.nationalhistoricships.org.uk

SHA-256 Fingerprint

C9:1D:2B:F5:AB:8E:AA:F5:1C:7F:0C:47:CB:92:4C:19:AC:1A:54:E2...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
age
0
cache-control
🔴 No Cache(no-store, private)
content-encoding
📦 Gzip(gzip)
content-language
en
content-length
11897
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

nationalhistoricships-org-uk.mail.protection.outlook.com

Domain Information

nationalhistoricships.org.uk

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
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 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=1.0
1 recommendation
  • •Mobile compatibility recommendation preview...
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Typography & Readability

Georgia + Arial

WCAG Partial
76/100
Readability
/30
20/30

16px · LH 1.50

Hierarchy
/20
16/20

3x ratio

WCAG
/25
19/25

1.14:1 min contrast

Performance
/25
21/25

System fonts

Heading Font

Georgia

Serif48px

Body Font

Arial

Sans16px

Contrast Ratio

1.14:1

2 issues

Reading Comfort

~39 CPL

Narrow lines
48px
h1
24px
h2
20px
h3
20px
h4
16px
p

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

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

❌ Very complex text: Flesch score 13/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.1:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 3.0x larger than body text.

Buy on MyFontsFlesch 13

Color Palette

8 unique colors
Light
#ffffff
Primary· 22.1%
#7c5e4c
Secondary· 39.8%
#9d6f51
Secondary· 15.5%
#fdb738
Primary· 9.1%
#c18558
Secondary· 4.3%
#a27e65
Secondary· 3.5%
#594338
Secondary· 3.2%
#f4e6cb
Accent· 2.4%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

14 Resources

7
Scripts
7
Styles
2
Async
0
Defer

Top Script Sources

youtube.com(2)local(2)googletagmanager.com(1)cc.cdn.civiccomputing.com(1)cdn.jsdelivr.net(1)

Website Identity

nationalhistoricships.org.uk

Location detected: 🇬🇧 United Kingdomvia tld
📧 Microsoft 365en

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Last analyzed: 01 Jun 2026 at 09:20

Historical Analysis & Change Tracking