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nasuwt.org.uk

https://nasuwt.org.uk· First analyzed 14 May 2026· Updated 14 May 2026
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nasuwt.org.uk
Desktop screenshot of nasuwt.org.uk
Mobile screenshot of nasuwt.org.uk
Mobile

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

172.67.73.139

Site Location

🇬🇧 United Kingdomvia tld

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

grannbo.ns.cloudflare.com.doug.ns.cloudflare.com.

Performance

98

Core Web Vitals

Weight

First Contentful Paint
905 ms10%
Speed Index
1.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.9 MB
104 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Technology Stack

11 Technologies Detected

CSS Frameworks

2
Bootstrap
Tailwind CSS

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQueryv1.10.1

UI Components

1
Slick Carousel

Other

1
Modernizr

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Social

1
ShareThis

CDN

1
Cloudflare

SEO Analysis

D57/100
14
9
2
Meta Tags7/15
Content11/12
Headings3/8
Technical12/25
E-E-A-T3/7
Images1/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
N
nasuwt.org.uknasuwt.org.uk

NASUWT | The Teachers' Union

The NASUWT, the Teachers’ Union, works to protect the status of the teaching profession and deliver real improvements to teachers’ and school leaders’ workin...

Description truncated.
Title Length29 chars

Recommended: 50-60 chars (~176px / 580px)

Description Length253 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (37/53) — critical for accessibility and SEO

11 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

923 URLs

robots.txt

Local SEO

Local Search Readiness

19/100
Poor
6 10 2

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

Sponsored

AI & LLM Readiness

D40/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
0/25
Citation
9/25

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
navheader/footer
Text ratio:9%
Words:1,366
Token eff.:Optimal
Sections/1K:32.9
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary19w
Descriptive Headingsavg 6.6w
Canonical URL
Open Graph2/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
AI readiness recommendation preview...
Upgrade to view recommendations

Sponsored

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.
C
67/100
12
Passed
3
Critical
4
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
17/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
0/15
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.
3 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
32/100
E
301 mg
CO₂e / view
2.9 MB
Page Weight
30%
Cleaner Than
New Visitor
344 mg
vs
Returning (cached)
172 mg
Annual (10K/mo)
36.2 kg
Emission Segments
Data Center
15 mg
Network
89 mg
Device
198 mg
Resource Breakdown
JavaScript
98.7 KB
Images
2.7 MB
CSS
75.5 KB
Fonts
1.2 KB
HTML
16.3 KB
Other
300 B
Green Hosting Verified
Cloudflare
GWF Verified
6 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

25%Critical
Critical / Transactional

HTTPS

WAF

88d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

12.05.2026

Valid Until

10.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.nasuwt.org.uk

SHA-256 Fingerprint

03:80:D5:20:5C:80:6C:96:1D:AD:63:95:F5:BD:E7:05:A4:B1:8C:05...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cf-cache-status
DYNAMIC
cf-ray🇮🇹 Milan
9fb76810b9960e5a-MXP
content-encoding
⚡ Brotli(br)
content-language
en-
content-type
text/html;charset=UTF-8
Good Warning Issue

Email Infrastructure

Mimecast

Score

90

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

eu-smtp-inbound-2.mimecast.com
eu-smtp-inbound-1.mimecast.com

Domain Information

nasuwt.org.uk

DNSSEC
Not Enabled

Privacy & Compliance

Civic Cookie Control

Cookie Consent Banner
Civic Cookie Control
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Civic Cookie Control
Privacy policy page linked
Data Protection Officer mentioned

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.
D
59/100
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...
Upgrade to view recommendations

Typography & Readability

Lato

WCAG Partial
70/100
Readability
/30
20/30

16px · LH 1.80

Hierarchy
/20
19/20

2.75x ratio · ✓ H1→H6

WCAG
/25
16/25

1:1 min contrast

Performance
/25
15/25

1 font · 2 req

Heading Font

Lato

Sans44px

Body Font

Lato

Sans16px

Contrast Ratio

1:1

25 issues

Reading Comfort

~40 CPL

Narrow lines
44px
h1
40px
h2
22px
h3
22px
h4
16px
p

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

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 25 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 2.8x larger than body text.

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

GGoogle FontsFlesch 0

Color Palette

10 unique colors
Light
#ffffff
Background· 19.2%
#032143
Primary· 18.8%
#44c0b6
Secondary· 18.7%
#014b9c
Primary· 12.7%
#084083
Accent· 8%
#f8f677
Accent· 7.3%
#77a49a
Secondary· 3.4%
#245c95
Accent· 3%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Social Media

1
ShareThisFree

Social widgets and sharing tools

2

Categories

3

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
2
Async
0
Defer

Top Script Sources

local(17)googletagmanager.com(2)cc.cdn.civiccomputing.com(1)

Website Identity

nasuwt.org.uk

webcontent@mail.nasuwt.org.uk
01214536150
Location detected: 🇬🇧 United Kingdomvia tld
📧 Mimecast

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Last analyzed: 14 May 2026 at 05:12

Historical Analysis & Change Tracking