chicagomanualofstyle.org
The Chicago Manual of Style
Last scanned Aug 5, 2026, 12:00 PM · 9 views
Overall score
Fair
Summary
Homepage to The Chicago Manual of Style Online. This website uses Apache. SEO is fair (60/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
Homepage to The Chicago Manual of Style Online. University of Chicago Find it. Write it. Cite it. The Chicago Manual of Style Online is the venerable, time-tested guide to style, usage, and grammar in an accessible online format. ¶ It is the indispensable reference for writers, editors, proofreaders, indexers, copywriters, designers, and publishers, informing the editorial canon with sound, definitive advice. ¶ Over 1.75 million copies sold!
Top issues to fix
12 issues found · 3 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
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.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
2 cookies without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
+6 more issues — details in the sections below.
SEO
6 issue(s) found
Performance
955 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Score history
-3 overall since Jul 26, 2026
- Overall
- 77
- SEO
- 60
- Security
- 65
- Performance
- 100
- Accessibility
- 90
Organization
Company details published in this site's own structured data.
Homepage to The Chicago Manual of Style Online. University of Chicago Find it. Write it. Cite it. The Chicago Manual of Style Online is the venerable, time-tested guide to style, usage, and grammar in an accessible online format. ¶ It is the indispensable reference for writers, editors, proofreaders, indexers, copywriters, designers, and publishers, informing the editorial canon with sound, definitive advice. ¶ Over 1.75 million copies sold!
Meta tags
- Title
- The Chicago Manual of Style
- Description
- Homepage to The Chicago Manual of Style Online. University of Chicago Find it. Write it. Cite it. The Chicago Manual of Style Online is the venerable, time-tested guide to style, usage, and grammar in an accessible online format. ¶ It is the indispensable reference for writers, editors, proofreaders, indexers, copywriters, designers, and publishers, informing the editorial canon with sound, definitive advice. ¶ Over 1.75 million copies sold!
- Canonical
- 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
- —
- 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
- Internet2
- Subject
- ucp-press-web10.uchicago.edu
- Valid from
- Dec 4, 2025
- Valid to
- Dec 4, 2026
- Days until expiry
- 121
- SAN domains
- ucp-press-web10.uchicago.edu, amnat.org, buildingtheamericanrepublic.org, chicagodistributioncenter.com, chicagodistributioncenter.org, chicagodistributionservices.com, chicagodistributionservices.org, chicagomanual.com, chicagomanual.org, chicagomanualofstyle.com, chicagomanualofstyle.org, chicagoreference.com, csemanual.com, csemanual.org, manualofstyle.org, normanmaclean.com, phoenixpoets.org, press.uchicago.edu, scientificstyle.org, scientificstyleandformat.com, scientificstyleandformat.org, turabian.com, turabian.org, verdiedition.com, verdiedition.org, www.amnat.org, www.buildingtheamericanrepublic.org, www.chicagodistributioncenter.com, www.chicagodistributioncenter.org, www.chicagodistributionservices.com, www.chicagodistributionservices.org, www.chicagomanualofstyle.com, www.chicagomanualofstyle.org, www.chicagoreference.com, www.csemanual.com, www.csemanual.org, www.normanmaclean.com, www.phoenixpoets.org, www.press.uchicago.edu, www.scientificstyle.org, www.scientificstyleandformat.com, www.scientificstyleandformat.org, www.turabian.com, www.turabian.org, www.verdiedition.com, www.verdiedition.org
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 2 cookie(s) observed
Content & assets
Headings
H1 0 · H2 0 · H3 0
Links
20 internal · 9 external · 20 broken
Images
7 total · 0 missing alt
Scripts / Styles
35 scripts · 8 stylesheets
JS / CSS size
433 B · 11.9 KB
Page size
15.9 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
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://chicagomanualofstyle.org
- Final URL
- https://www.chicagomanualofstyle.org/home.html
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 955 ms
- HTML size
- 15.9 KB
- Redirect chain
- https://chicagomanualofstyle.org → https://www.chicagomanualofstyle.org/ → https://www.chicagomanualofstyle.org/home.html
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Frequently asked questions
- What technology does chicagomanualofstyle.org use?
- chicagomanualofstyle.org is built with jQuery, Google Analytics, Apache.
- Is chicagomanualofstyle.org secure (HTTPS)?
- Yes. chicagomanualofstyle.org uses TLS 1.3 with a certificate issued by Internet2, valid until Dec 4, 2026.
- Who hosts chicagomanualofstyle.org?
- Hosting provider information for chicagomanualofstyle.org is not available yet.
- What is chicagomanualofstyle.org's SEO score?
- chicagomanualofstyle.org scored 60/100 for SEO in the latest analysis (fair).
- What is chicagomanualofstyle.org's overall website score?
- chicagomanualofstyle.org has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.
- Has chicagomanualofstyle.org's score changed over time?
- chicagomanualofstyle.org's overall score has declined by 3 points (from 80 to 77) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card