penguin.co.uk
Penguin Books UK | Official Website
Last scanned Aug 1, 2026, 7:00 AM · 10 views
Overall score
Excellent
Summary
Explore the world of Penguin Books. This website uses WordPress behind Cloudflare CDN. SEO is good (80/100) and accessibility is excellent (90/100). Security scores excellent (100/100) and performance excellent (90/100). Top issue: No H1 heading found.
Explore the world of Penguin Books. Lose yourself in a book, find your next read and hear from the authors you love.
Top issues to fix
4 issues found · 1 high priority
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
20 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
3 issue(s) found
Performance
341 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Score history
-3 overall since Jul 25, 2026
- Overall
- 90
- SEO
- 80
- Security
- 100
- Performance
- 90
- Accessibility
- 90
Organization
Company details published in this site's own structured data.
Explore the world of Penguin Books. Lose yourself in a book, find your next read and hear from the authors you love.
Meta tags
- Title
- Penguin Books UK | Official Website
- Description
- Explore the world of Penguin Books. Lose yourself in a book, find your next read and hear from the authors you love.
- Canonical
- https://www.penguin.co.uk
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width
- Robots meta
- Manifest
- https://www.penguin.co.uk/site.webmanifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Cloudflare
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- www.penguin.co.uk
- Valid from
- Jul 20, 2026
- Valid to
- Oct 18, 2026
- Days until expiry
- 78
- SAN domains
- www.penguin.co.uk
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 0 · H2 17 · H3 14
Links
63 internal · 24 external · 20 broken
Images
29 total · 3 missing alt
Scripts / Styles
21 scripts · 5 stylesheets
JS / CSS size
300 KB · 0 B
Page size
578 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- No H1 heading found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://penguin.co.uk
- Final URL
- https://www.penguin.co.uk
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 330 ms
- HTML size
- 578 KB
- Redirect chain
- https://penguin.co.uk → https://www.penguin.co.uk
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Frequently asked questions
- What technology does penguin.co.uk use?
- penguin.co.uk is built with Next.js, WordPress.
- Is penguin.co.uk secure (HTTPS)?
- Yes. penguin.co.uk uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 18, 2026.
- Who hosts penguin.co.uk?
- Hosting provider information for penguin.co.uk is not available yet.
- What is penguin.co.uk's SEO score?
- penguin.co.uk scored 80/100 for SEO in the latest analysis (great).
- What is penguin.co.uk's overall website score?
- penguin.co.uk has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
- Has penguin.co.uk's score changed over time?
- penguin.co.uk's overall score has declined by 3 points (from 93 to 90) since Jul 25, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card