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blackwell.co.uk

https://blackwell.co.uk· First analyzed 05 May 2026· Updated 05 May 2026
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blackwell.co.uk
Desktop screenshot of blackwell.co.uk
Mobile screenshot of blackwell.co.uk
Mobile

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Hosting Provider

Iomart Hosting Limited

IP Address

109.169.68.201

Site Location

🇬🇧 United Kingdomvia tld

Server Location

🇬🇧 London, United Kingdom

ASN

AS20860

Organization

Iomart Hosting Limited

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns.34sp.com.ns2.34sp.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
472 ms10%
Speed Index
614 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
79 KB
95 requests

Image Optimization

WebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Iomart Hosting Limited
CDN
Cloudflare

Technology Stack

12 Technologies Detected

Fonts

3
Google FontsAdobe Fonts (Typekit)Adobe Fonts

Libraries

2
jQuery
Moment.js

UI Components

1
Lightbox

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Customer Support

1
Zendesk

CDN

1
Cloudflare

SEO Analysis

B76/100
23
6
1
Meta Tags15/15
Content12/12
Headings6/8
Technical21/25
E-E-A-T3/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
B
blackwell.co.ukblackwell.co.uk

Blackwell's, books for life and for learning Blackwell's

Trading since 1879, Blackwell of Oxford is the largest academic and specialist bookseller in the UK. Fast dispatch, carefully packaged, worldwide delivery.

Title Length56 chars

Recommended: 50-60 chars (~324px / 580px)

Description Length155 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (25/41) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

5 URLs

5 sub-sitemaps

robots.txt

186 rules

Sitemap reference found

Local SEO

Local Search Readiness

10/100
Poor
3 13 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

D47/100
Bot Access
20/25
Machine Read.
14/25
Schema Data
3/25
Citation
10/25

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
def. listsnavheader/footer
Text ratio:6%
Words:1,018
Token eff.:Optimal
Sections/1K:4.9
Depth:3/5

Structured Data

1 JSON-LD
WebSiteSearchAction

Citation Readiness

Opening Summary332w
Descriptive Headingsavg 4w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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
83/100
13
Passed
1
Critical
2
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
18/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
12/15
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
5/15
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+
8 mg
CO₂e / view
78.6 KB
Page Weight
95%
Cleaner Than
New Visitor
9 mg
vs
Returning (cached)
5 mg
Annual (10K/mo)
948 g
Emission Segments
Data Center
<0.001 g
Network
2 mg
Device
5 mg
Resource Breakdown
JavaScript
1.2 KB
Images
12.3 KB
CSS
46.7 KB
HTML
17.4 KB
Other
1.1 KB
Green Hosting Verified
iomart Group PLC
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
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A

Security Score

81%Very Good
Interactive

HTTPS

WAF

71d

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

Valid From

16.04.2026

Valid Until

15.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

blackwells.co.uk*.blackwells.co.uk

SHA-256 Fingerprint

BF:79:A5:77:7D:53:BB:7E:B3:85:00:B5:48:DC:EA:EF:4E:5D:8E:62...

Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-cache, no-store, max-age=0, must-revalidate)
cf-cache-status
DYNAMIC
cf-ray
9f6b8aeafc3994f4-BOS
content-encoding
📦 Gzip(gzip)
content-language
en
content-security-policy
default-src 'self'; object-src https://cdn.waterstones.com; ...
Good Warning Issue

Email Infrastructure

Mimecast

Score

70

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

blackwell.co.uk

Domain Age
30y 8m

Created

01.09.1995

Expires

01.09.2027

Last Updated

31.08.2025

Registrar

34SP.com Limited

DNSSEC
Not Enabled

Privacy & Compliance

CookieYes

Cookie Consent Banner
CookieYes
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: CookieYes
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.
C
64/100
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
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

blackwell + opensans

WCAG Partial
68/100
Readability
/30
26/30

16px · LH 1.40

Hierarchy
/20
14/20

3.38x ratio

WCAG
/25
10/25

1:1 min contrast

Performance
/25
18/25

2 fonts · 4 req

Heading Font

blackwell

Sans54px

Body Font

opensans

Sans16px

Contrast Ratio

1:1

5 issues

Reading Comfort

~46 CPL

Optimal (45–75)
54px
h1
26px
h2
16px
p

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

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

✅ Optimal line length: ~46 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 5 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 3.4x larger than body text.

GGoogle FontsAAdobe FontsBuy on MyFontsFlesch 65

Color Palette

9 unique colors
2.55:1 Fail Light
#ffffff
Background· 56.80000000000001%
#a4a29c
Other· 7.3%
#002d62
Primary· 0%
#56636e
Secondary· 7%
#20252d
Secondary· 6.2%
#98786e
Secondary· 5.1%
#683836
Secondary· 5%
#f7f6df
Accent· 3.9%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

1
CookieYesSMB

Cookie consent and privacy compliance tools

2

Categories

3

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

15 Resources

8
Scripts
7
Styles
2
Async
1
Defer

Top Script Sources

local(4)cdn-cookieyes.com(2)googletagmanager.com(1)cdnjs.cloudflare.com(1)

Website Identity

blackwell.co.uk

30 years old
Location detected: 🇬🇧 United Kingdomvia tld
34SP.com Limited📧 Mimecasten

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Last analyzed: 05 May 2026 at 00:14

Historical Analysis & Change Tracking