knopfdoubleday.com
Home - Knopf Doubleday
Last scanned Aug 24, 2026, 1:23 PM
Overall score
Excellent
Summary
The Knopf Doubleday Publishing Group is a storied leader in commercial and literary publishing and home to some of the most iconic authors in the world, including Nobel Laureates Toni Morrison, Kazuo Ishiguro, and Alice… This website uses WordPress behind Fastly CDN. SEO is good (80/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (90/100). Top issue: Meta description longer than 160 characters.
The Knopf Doubleday Publishing Group is a storied leader in commercial and literary publishing and home to some of the most iconic authors in the world, including Nobel Laureates Toni Morrison, Kazuo Ishiguro, and Alice Munro; Prize-winners Robert Caro, Joan Didion, Yaa Gyasi, Jhumpa Lahiri, Cormac McCarthy, Michael Ondaatje, Tommy Orange, Patti Smith, Anne Tyler, and Colson Whitehead; and global bestsellers Dan Brown, John Grisham, Erin Morgenstern, and Jo Nesbo.
Top issues to fix
5 issues found
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
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.
1 broken link on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
4 issue(s) found
Performance
1.54 s
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
The Knopf Doubleday Publishing Group is a storied leader in commercial and literary publishing and home to some of the most iconic authors in the world, including Nobel Laureates Toni Morrison, Kazuo Ishiguro, and Alice Munro; Prize-winners Robert Caro, Joan Didion, Yaa Gyasi, Jhumpa Lahiri, Cormac McCarthy, Michael Ondaatje, Tommy Orange, Patti Smith, Anne Tyler, and Colson Whitehead; and global bestsellers Dan Brown, John Grisham, Erin Morgenstern, and Jo Nesbo.
Meta tags
- Title
- Home - Knopf Doubleday
- Description
- The Knopf Doubleday Publishing Group is a storied leader in commercial and literary publishing and home to some of the most iconic authors in the world, including Nobel Laureates Toni Morrison, Kazuo Ishiguro, and Alice Munro; Prize-winners Robert Caro, Joan Didion, Yaa Gyasi, Jhumpa Lahiri, Cormac McCarthy, Michael Ondaatje, Tommy Orange, Patti Smith, Anne Tyler, and Colson Whitehead; and global bestsellers Dan Brown, John Grisham, Erin Morgenstern, and Jo Nesbo.
- Canonical
- https://knopfdoubleday.com/
- Language
- en-US
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Fastly
- 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
- knopfdoubleday.com
- Valid from
- Aug 14, 2026
- Valid to
- Nov 12, 2026
- Days until expiry
- 78
- SAN domains
- knopfdoubleday.com, www.knopfdoubleday.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 2 · H2 4 · H3 0
Links
40 internal · 8 external · 1 broken
Images
1 total · 0 missing alt
Scripts / Styles
73 scripts · 4 stylesheets
JS / CSS size
52.7 KB · 32.4 KB
Page size
88.1 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- Multiple H1 headings found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://knopfdoubleday.com
- Final URL
- https://knopfdoubleday.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 1.54 s
- HTML size
- 88.1 KB
- Redirect chain
- https://knopfdoubleday.com
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Frequently asked questions
- What technology does knopfdoubleday.com use?
- knopfdoubleday.com is built with React, WordPress, jQuery, Nginx.
- Is knopfdoubleday.com secure (HTTPS)?
- Yes. knopfdoubleday.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Nov 12, 2026.
- Who hosts knopfdoubleday.com?
- Hosting provider information for knopfdoubleday.com is not available yet.
- What is knopfdoubleday.com's SEO score?
- knopfdoubleday.com scored 80/100 for SEO in the latest analysis (great).
- What is knopfdoubleday.com's overall website score?
- knopfdoubleday.com has an overall SiteGraph score of 92/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card