copyscape.com
Copyscape Plagiarism Checker - Duplicate Content Detection Software
Last scanned Aug 2, 2026, 5:00 AM · 11 views
Overall score
Fair
Summary
Copyscape is a free plagiarism checker. This website uses PHP. SEO is fair (65/100) and accessibility is fair (70/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: Title longer than 60 characters.
Copyscape is a free plagiarism checker. The software lets you detect duplicate content and check if your text is original.
Top issues to fix
13 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.
Over half of images are missing alt text
AccessibilityAdd alt attributes to images — screen readers depend on them, and they help image SEO.
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.
+7 more issues — details in the sections below.
SEO
6 issue(s) found
Performance
1.22 s
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Score history
-1 overall since Jul 26, 2026
- Overall
- 72
- SEO
- 65
- Security
- 65
- Performance
- 90
- Accessibility
- 70
Organization
Company details published in this site's own structured data.
Copyscape is a free plagiarism checker. The software lets you detect duplicate content and check if your text is original.
Meta tags
- Title
- Copyscape Plagiarism Checker - Duplicate Content Detection Software
- Description
- Copyscape is a free plagiarism checker. The software lets you detect duplicate content and check if your text is original.
- Canonical
- Language
- en
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1.0, maximum-scale=2.0, user-scalable=yes
- 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 1.2
- Issuer
- Sectigo Limited
- Subject
- *.copyscape.com
- Valid from
- Nov 11, 2025
- Valid to
- Dec 12, 2026
- Days until expiry
- 132
- SAN domains
- *.copyscape.com, copyscape.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: none · 2 cookie(s) observed
Content & assets
Headings
H1 1 · H2 6 · H3 0
Links
22 internal · 5 external · 20 broken
Images
27 total · 18 missing alt
Scripts / Styles
10 scripts · 8 stylesheets
JS / CSS size
721 B · 2.5 KB
Page size
29.0 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Title longer than 60 characters
- Missing canonical link
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- Over half of images are missing alt text
Scan details
- Requested URL
- https://copyscape.com
- Final URL
- https://www.copyscape.com/
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 1.22 s
- HTML size
- 29.0 KB
- Redirect chain
- https://copyscape.com → https://www.copyscape.com/
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Frequently asked questions
- What technology does copyscape.com use?
- copyscape.com is built with PHP, Bootstrap, jQuery, Google Analytics, Apache.
- Is copyscape.com secure (HTTPS)?
- Yes. copyscape.com uses TLS 1.2 with a certificate issued by Sectigo Limited, valid until Dec 12, 2026.
- Who hosts copyscape.com?
- Hosting provider information for copyscape.com is not available yet.
- What is copyscape.com's SEO score?
- copyscape.com scored 65/100 for SEO in the latest analysis (fair).
- What is copyscape.com's overall website score?
- copyscape.com has an overall SiteGraph score of 72/100, combining SEO, performance, security, and accessibility.
- Has copyscape.com's score changed over time?
- copyscape.com's overall score has declined by 1 point (from 73 to 72) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card