High-quality radiators direct from the UK's #1 radiator manufacturer. Huge range of styles and sizes available directly from the UK's best radiator supplier

Title Length56 chars

Recommended: 50-60 chars (~341px / 580px)

Description Length156 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (166/283) — critical for accessibility and SEO

5 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

14 rules

Sitemap reference found

Local SEO

Local Search Readiness

55/100

Fair

14 9

Sponsored

AI & LLM Readiness

D49/100

Bot Access

20/25

Machine Read.

0/25

Schema Data

15/25

Citation

14/25

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:3%

Words:6,691

Token eff.:Excessive

Structured Data

6 JSON-LD

FAQPage×1.5Organization×1.1WebSiteLocalBusiness×1.1BreadcrumbListSearchAction

sameAs entity links

Citation Readiness

Opening Summary107w

Descriptive Headings

Canonical URL

Open Graph3/3

Twitter Card1/3

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.

70/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

8/20

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

14/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

11/15

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.

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.

59/100

144 mg

CO₂e / view

1.4 MB

Page Weight

60%

Cleaner Than

New Visitor

164 mg

Returning (cached)

82 mg

Annual (10K/mo)

17.3 kg

Emission Segments

Data Center

7 mg

Network

42 mg

Device

95 mg

Resource Breakdown

JavaScript

787 B

Images

1.2 MB

Fonts

921 B

HTML

152.5 KB

Other

3.7 KB

Green Hosting Verified

Cloudflare

GWF Verified

5 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

35%Critical

Critical / Transactional

HTTPS

WAF

79d

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

10.05.2026

Valid Until

08.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

stelrad.com*.stelrad.com

SHA-256 Fingerprint

FA:10:15:D0:57:6A:FA:CC:FC:2B:D9:98:1E:56:19:AB:37:69:7A:EA...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

14781

alt-svc

h3=":443"; ma=86400

cache-control

🔴 No Cache(no-cache)

cf-apo-via

tcache

cf-cache-status

HIT

cf-edge-cache

cache,platform=wordpress

Good Warning Issue

Email Infrastructure

Mimecast

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

eu-smtp-inbound-2.mimecast.com

eu-smtp-inbound-1.mimecast.com

Domain Information

stelrad.com

Domain Age

28y 3m

Created

19.02.1998

Expires

18.02.2028

Last Updated

19.02.2025

Registrar

123-Reg Limited

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

Legitimate interest basis 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.

80/100

Mobile Friendly35 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=1.0

1 recommendation

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Montserrat

WCAG Partial

74/100

Readability

/30

20/30

14px · LH 1.71

Hierarchy

/20

19/20

4.29x ratio · ✓ H1→H6

WCAG

/25

15/25

2.61:1 min contrast

Performance

/25

20/25

1 font · 2 req

Heading Font

Montserrat

Sans60px

Body Font

Montserrat

Sans14px

Contrast Ratio

2.61:1

12 issues

Reading Comfort

~41 CPL

Narrow lines

60px

14px

Minor Second

Scale

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

⚠️ Hard to read: Flesch score 50/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 12 elements below WCAG AA threshold (min 2.6:1).

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

✅ Strong hierarchy: Headlines are 4.3x larger than body text.

⚠️ Fluid type without rem: clamp() detected but missing rem units. May fail WCAG 1.4.4 zoom test.

GGoogle FontsFluid TypeFlesch 50

Color Palette

6 unique colors

5.92:1 AA Light

#ffffff

Background· 58.6%

#616658

Other· 9.2%

#000000

Primary· 0%

#242433

Secondary· 9.2%

#8a806c

Secondary· 7.1%

Business & Marketing Stack

5 Tools Detected

Enterprise

Marketing Automation

MailchimpSMB

Email marketing and automation platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Reviews & Social Proof

TrustpilotMid-Market

Customer reviews and testimonials

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

stelrad.com(8)googletagmanager.com(3)chimpstatic.com(2)consent.cookiebot.com(2)paypal.com(1)

Website Identity

Stelrad

Organization

High-quality radiators direct from the UK's #1 radiator manufacturer. Huge range of styles and sizes available directly from the UK's best radiator supplier

sales@stelrad.com

08008766813

www.stelrad.com/

28 years old

Stelrad House, Marriott Road, Mexborough

S64 8BN, Mexborough, Rotherham

Location detected: 🇬🇧 United Kingdom, Mexboroughvia schema

123-Reg Limited📧 Mimecasten-GB

Social Profiles

Facebook X (Twitter)Instagram LinkedIn YouTube

Sponsored

Last analyzed: 20 May 2026 at 19:42

Historical Analysis & Change Tracking