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copyscape.com

Copyscape

Who runs Copyscape, what it tracks and what it costs, and the 20 closest plagiarism detection alternatives.

Who’s behind it
Not stated
Online since
Unknown
Trackers
Prices
No pricing page
Last price change
–
Closest alternative
Quetext

Measured from Copyscape’s own pages, the Internet Archive and public records. Hover a dotted value for its source and date.

We’ll send a link to confirm. Your address is only used for these alerts.

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01 · Who’s behind it

Who runs Copyscape

Copyscape copyscape.com

Copyscape is a free plagiarism checker. The software lets you detect duplicate content and check if your text is original.

Wikidata: online plagiarism detection service

Company
No imprint we could read
Online since
Not in the Internet Archive
Audience
In English

02 · Privacy

What Copyscape tracks

What the homepage loads before you accept or decline cookies. A cookie banner should hold most of it back until you agree, and a tag manager can load more that we don’t see.

tracker that follows visitors

5 of the 18 alternatives below have fewer, 9 have more.

Privacy-friendly alternatives →
Cookie banner
None found
US company
2 tools

  • Visitor analytics

    Counts and follows visits, usually with cookies.

  • Third-party embeds

    Videos, maps or fonts from other companies, which receive the visitor’s IP address.

03 · Alternatives

Alternatives to Copyscape

Fewer trackers than CopyscapeNo ad trackersRegistered in the EUFree planOnly in English

None of the 60 sites closest to Copyscape match these filters. We read imprints and pricing pages once a week, so more sites qualify as we get to them.

04 · History

What changed

Price and policy history →

No changes yet. Each new crawl is compared with the last one, and what Copyscape adds, drops or rewrites shows up here.

05 · Details

How we measure

Alternatives are matched by what sites actually offer, from their homepages, Wikidata and a summary by Claude, in any language. Trackers and the rest of the stack come from the homepage’s code and DNS records.

The full technology stack and search numbers · 8 technologies
Neighbours
k = 60
Sites searched
9,212
Vector
384-d
Query
48 ms

Built with

JavaScript libraries
  • jQuery asset https://www.copyscape.com/js/jquery-3.6.0.min.js
CSS & UI
  • Bootstrap asset https://www.copyscape.com/js/bootstrap.bundle.min.js
Fonts
  • Google Fonts asset https://fonts.googleapis.com/css?family=Open+Sans:400,600,300,700
Analytics
Web servers
Languages & backends
  • PHP cookie PHPSESSID
Email hosting
  • Google Workspace TXT v=spf1 a mx include:emailsrvr.com include:_spf.google.com ?all
SaaS tools (verified in DNS)