StackOptic
Back to Search
observer.co.uk favicon

observer.co.uk

https://observer.co.uk· First analyzed 22 Apr 2026· Updated 22 Apr 2026
Export
observer.co.uk
Desktop screenshot of observer.co.uk
Mobile screenshot of observer.co.uk
Mobile

Sponsored

Hosting Provider

Vercel
vercel.com

IP Address

216.150.1.1

Site Location

🇬🇧 London, United Kingdomvia schema_nap

Server Location

🇺🇸 Walnut, United States

ASN

AS16509

Organization

Vercel, Inc

Server

Vercel

Nameservers

ns-354.awsdns-44.com.ns-867.awsdns-44.net.ns-1041.awsdns-02.org.ns-1707.awsdns-21.co.uk.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
571 ms10%
Speed Index
742 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.5 MB
97 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Infrastructure
Platform
Vercel

Technology Stack

8 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Matomo

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Advertising

1
LinkedIn Ads

Platforms

1
Vercel

SEO Analysis

D55/100
18
7
3
Meta Tags7/15
Content3/12
Headings1/8
Technical21/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile1/4
Indexability3/3
O
observer.co.ukobserver.co.uk

News, culture and style | The Observer

No description available for this page.

Title Length39 chars

Recommended: 50-60 chars (~238px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

  • • Missing meta description — important for click-through rates in SERPs
  • • Very thin content (7 words). Search engines need substantial content for ranking.
  • • Missing H1 tag — every page should have exactly one H1

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

9,718 URLs

robots.txt

17 rules

Sitemap reference found

Local SEO

Local Search Readiness

18/100
Poor
5 14 1

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

Sponsored

AI & LLM Readiness

F32/100
Bot Access
17/25
Machine Read.
7/25
Schema Data
1/25
Citation
7/25

AI Bot Access

10/14 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:1%
Words:1,359
Token eff.:Optimal

Structured Data

2 JSON-LD
sameAs entity links

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph2/3
Twitter Card2/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
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.
B
74/100
11
Passed
5
Critical
0
Warnings
Images & Alt Text
18/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
9/20
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
11/15
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.
2 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.
62/100
C
159 mg
CO₂e / view
1.5 MB
Page Weight
60%
Cleaner Than
New Visitor
181 mg
vs
Returning (cached)
91 mg
Annual (10K/mo)
19.0 kg
Emission Segments
Data Center
8 mg
Network
47 mg
Device
104 mg
Resource Breakdown
JavaScript
698.6 KB
Images
23.8 KB
CSS
18.0 KB
Fonts
784.7 KB
HTML
45.7 KB
Other
602 B
Green Hosting Verified
Vercel
Provider Match
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

76%Good
Static / Informational

HTTPS

No WAF

36d

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

28.02.2026

Valid Until

29.05.2026

Subject Alternative Names (1)

observer.co.uk

SHA-256 Fingerprint

08:FF:30:F6:AE:28:CB:69:10:B1:96:C7:E7:F6:D6:1E:3F:A7:05:1E...

Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

age
6645
cache-control
🟡 0s(public, max-age=0, must-revalidate)
content-encoding
⚡ Brotli(br)
content-security-policy-report-only
default-src 'self'; script-src 'self' 'unsafe-inline' 'unsaf...
content-type
text/html; charset=utf-8
date
Wed, 22 Apr 2026 14:06:26 GMT
Good Warning Issue

Email Infrastructure

Mimecast

Score

98

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

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

Domain Information

observer.co.uk

DNSSEC
Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner
OneTrust
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: OneTrust
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.
A
82/100
Mobile Friendly218 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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

caslonIonic

WCAG Partial
64/100
Readability
/30
21/30

16px · LH 1.50

Hierarchy
/20
8/20
WCAG
/25
19/25

3.94:1 min contrast

Performance
/25
16/25

1 font · 10 req

Heading Font

caslonIonic

Sans

Body Font

caslonIonic

Sans16px

Contrast Ratio

3.94:1

1 issue

Reading Comfort

~40 CPL

Narrow lines
28px
h3
26px
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 27/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 3.9:1).

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

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

Buy on MyFontsFlesch 27

Color Palette

8 unique colors
3.88:1 AA Large Light
#ffffff
Background· 68%
#907c85
Secondary· 5.3%
#a9d9ff
Primary· 12.1%
#6d433b
Secondary· 4%
#cfbcc5
Secondary· 3.2%
#a1b0c7
Secondary· 3%
#dde2eb
Primary· 2.8%

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

3
Google AnalyticsFree
Matomo (Piwik)Mid-Market
Google Tag ManagerFree

User behavior and product analytics

Advertising

1
LinkedIn AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

1
OneTrustEnterprise

Cookie consent and privacy compliance tools

3

Categories

5

Total Tools

2

Enterprise

1

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

Sponsored

Scripts & Styles

30 Resources

20
Scripts
10
Styles
20
Async
0
Defer

Top Script Sources

local(14)cdn.cxense.com(2)berrythompson.innocraft.cloud(2)snap.licdn.com(1)googletagmanager.com(1)

Website Identity

The Observer

The Observer

NewsMediaOrganization

22 Berners Street, London

W1T 3LP, London

UK

Location detected: 🇬🇧 United Kingdom, Londonvia schema_nap
📧 MimecastenEst. 1791

Sponsored

Last analyzed: 22 Apr 2026 at 15:57

Historical Analysis & Change Tracking