harpercollins.com
HarperCollins Publishers: World-Leading Book Publisher
Last scanned Aug 1, 2026, 3:00 AM · 13 views
Overall score
Excellent
Summary
Publishing great authors since 1817. This website uses Shopify behind Cloudflare CDN. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (90/100). Top issue: robots.txt not found.
HarperCollins
Publishing great authors since 1817. Discover thousands of books and authors, plus get exclusives on new releases, bestsellers, and more, at harpercollins.com.
Top issues to fix
3 issues found
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
2 issue(s) found
Performance
298 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-1 overall since Jul 25, 2026
- Overall
- 95
- SEO
- 90
- Security
- 100
- Performance
- 90
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
HarperCollins
Publishing great authors since 1817. Discover thousands of books and authors, plus get exclusives on new releases, bestsellers, and more, at harpercollins.com.
Meta tags
- Title
- HarperCollins Publishers: World-Leading Book Publisher
- Description
- Publishing great authors since 1817. Discover thousands of books and authors, plus get exclusives on new releases, bestsellers, and more, at harpercollins.com.
- Canonical
- https://www.harpercollins.com/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width,initial-scale=1
- Robots meta
- Manifest
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
- DigiCert Inc
- Subject
- harpercollins.com
- Valid from
- Nov 5, 2025
- Valid to
- Dec 6, 2026
- Days until expiry
- 127
- SAN domains
- harpercollins.com, www.harpercollins.com
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 1 · H2 3 · H3 1
Links
380 internal · 21 external · 20 broken
Images
213 total · 5 missing alt
Scripts / Styles
101 scripts · 9 stylesheets
JS / CSS size
149 KB · 19.0 KB
Page size
556 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://harpercollins.com
- Final URL
- https://www.harpercollins.com/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 287 ms
- HTML size
- 556 KB
- Redirect chain
- https://harpercollins.com → https://www.harpercollins.com/
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Frequently asked questions
- What technology does harpercollins.com use?
- harpercollins.com is built with Shopify, Bootstrap, jQuery, Cloudflare Analytics.
- Is harpercollins.com secure (HTTPS)?
- Yes. harpercollins.com uses TLS 1.3 with a certificate issued by DigiCert Inc, valid until Dec 6, 2026.
- Who hosts harpercollins.com?
- Hosting provider information for harpercollins.com is not available yet.
- What is harpercollins.com's SEO score?
- harpercollins.com scored 90/100 for SEO in the latest analysis (excellent).
- What is harpercollins.com's overall website score?
- harpercollins.com has an overall SiteGraph score of 95/100, combining SEO, performance, security, and accessibility.
- What company operates harpercollins.com?
- harpercollins.com is operated by HarperCollins. Publishing great authors since 1817. Discover thousands of books and authors, plus get exclusives on new releases, bestsellers, and more, at harpercollins.com.
- Has harpercollins.com's score changed over time?
- harpercollins.com's overall score has declined by 1 point (from 96 to 95) since Jul 25, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card