harpercollins.com
HarperCollins Publishers: World-Leading Book Publisher
Last scanned Jul 25, 2026, 2:25 AM · 1 view
Overall score
Excellent
Summary
Publishing great authors since 1817. This website uses Shopify hosted on Cloudflare behind Cloudflare CDN. SEO is excellent (95/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (90/100). Top issue: sitemap.xml 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.
- United States
- Hosted on Cloudflare
Top issues to fix
1 issue found
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
SEO
1 issue(s) found
Performance
292 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
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.
Contact
Email, phone, and address published on this site's own pages.
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
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 104.18.30.124
- ASN
- AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)
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
- 134
- 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
379 internal · 22 external · 0 broken
Images
216 total · 5 missing alt
Scripts / Styles
101 scripts · 9 stylesheets
JS / CSS size
149 KB · 19.0 KB
Page size
561 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 50
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Careers
This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.
Scan details
- Requested URL
- https://harpercollins.com
- Final URL
- https://www.harpercollins.com/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 281 ms
- HTML size
- 561 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?
- harpercollins.com is hosted on Cloudflare, behind Cloudflare CDN.
- What is harpercollins.com's SEO score?
- harpercollins.com scored 95/100 for SEO in the latest analysis (excellent).
- What is harpercollins.com's overall website score?
- harpercollins.com has an overall SiteGraph score of 96/100, 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.
- Is harpercollins.com hiring?
- harpercollins.com has a careers page; check it directly for current openings.
OpenGraph & Twitter Card
OpenGraph
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