Copyscape Premium
by Copyscape · Uncategorized
The Copyscape Premium plugin lets you check if a WordPress post is unique before it's published, by searching for duplicate content on the web.
Try it live opens a temporary test site in your browser, which can take about 20 seconds to load. Plugins that rely on outside services or a full server may not work completely there.
Health
B 72/100
no flags
Active installs
700+
≈800 estimated
Momentum
-17%
downloads vs prior 30d
Biggest opportunity: “duplicate content”, “original” and “unique” aren't earning a slot. You list them, but you're not in the first 24 results for those searches. WordPress.org counts only your first five tags, so free the slot for a search you can win.
72 health vs 58 average across 25,734 Uncategorized plugins
Install conversion
How it's measured →1.2%
of downloads still active
At least 700 of 60.4K lifetime downloads are still running, above its category: the median Uncategorized plugin keeps 0.6%, across 17,766 plugins.
Downloads count every update, not just first installs, so older and more frequently released plugins read lower. Compare against other Uncategorized plugins, not across the directory. wp.org reports active installs as the bottom of a band, so the real rate is this or higher.
This plugin shipped 2 releases in the last 12 months, and every existing install that updated counted as another download. wp.org publishes no split between first installs and updates, so we show the raw rate rather than guess at one.
Details
Directory ranking optimization
How it's scored →How well this listing is tuned to rank in WordPress.org search, on the factors an owner controls. Not popularity, optimization.
Well optimized
Most to gain: Rating quality
Updated 311 days ago, past the ~180 days where wp.org starts discounting
Tested up to WordPress 6.9.11, the current branch or newer
3.2★ over 10 reviews, smoothed to 3.95★ and held back under 25 reviews
5 of 5 tags set · short description in place
To rank higher: Too few reviews to rank on quality — nudge happy users to leave one.
Get the full rank-higher report →Search visibility
How it's tracked →Directory searches this plugin turns up in, and which way each one is moving. WordPress.org publishes no history of search positions, so this starts the day we first tracked a keyword and never backfills.
28
Momentum
Losing ground
-1.0
Velocity
places per keyword, 20d
0%
Breadth
of keywords climbing, 20d
-1.0
Acceleration
recent half vs earlier
wp.org is where the directory puts the plugin for that search. On merit is where it would sit if results were ranked on rating, support and updates, without the install boost. The last column is how far the wp.org position moved, from our first reading in the last 90 days to the latest.
| Keyword | wp.org | On merit | wp.org move, 90 days |
|---|---|---|---|
| copyscape your tag | #1 | #3 | 0 |
| plagiarism your tag | #6 | #4 | 0 |
| check plagiarism | #7 | #7 | — |
| duplicate content your tag | Not in the top 24 | ||
| original your tag | Not in the top 24 | ||
| unique your tag | Not in the top 24 | ||
4 searches this plugin appeared in over the last 90 days, 3 listed. 1 left out as unrelated or noise (years, numbers, stray words). 3 of its tags aren't in the top 24 for their own search.
What to do about it
- “duplicate content”, “original” and “unique” aren't earning a slot. You list them, but you're not in the first 24 results for those searches. WordPress.org counts only your first five tags, so free the slot for a search you can win.
Daily downloads
Since 5 Oct 2022 · 1,488 days · wp.org + Plugin Pulse archive
30-day downloads
Rolling 30-day volume · peak 8K · peaks are release surges
Directory rank vs rivals
wp.org popularity rank over time · higher is better · when a rival's line climbs above yours, they've overtaken you
Rating trend
Star average over time · dips mark rough releases
Health trend
Composite health score, snapshotted daily
Update activity
How busy the existing users are, measured as downloads in the last 30 days for every 1,000 active sites. A spike means a new release everyone's pulling; a long, slow decline means an aging user base that updates less.
Release cadence
Occasionally updatedHow often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.
2
releases in the last 12 months
10mo ago
latest release · v1.4.2 · 24 Dec 2025
16
tagged releases on record
Recent releases
What its installed base runs
via wordpress.orgShare of active installs on each version of this plugin · 91% run the current release. Green is the current release; a big slice on older versions is a user base that has stopped updating.
Estimated active installs
The public count shows “700+”. Our estimate pins where the real number sits.
Crossed into this band 7 days ago and a band this size takes about a year or more to cross, so the real count is still just under 800.
Install history since 10 Mar 2015
Recent reviews
All reviews on wp.org ↗- ★★★★★ Просування сайтів1.8y ago
The plugin is not working. I paid for the service, checked all the settings. After pressing the check button, the page is updated, but nothing changes, and the limits are not written off. This topic was modified 1 year, 5 months ago by Просування сайтів.
Read on wp.org ↗ - ★★★★★ dorianrochowski2.8y ago
I’ve spent 15$ to get hundreds of matches for… cookie consent pop-up. What a BS.
Read on wp.org ↗ - ★★★★★ Excess Pro Net3.8y ago
I personally installed the plugin in my site to detect plagiarised content that i did not notice before. and well just for 10$ I got almost unlimited credits to check for it on product and posts pages. The tool is perfect detecting spam. The only thing is that it also autodectects the same website content as duplicate. And also after saving Twice, The plugin conflicts a little with wpml plugin and changes the language of the post which damages the page. Though i need the plugin and still works. I hope others check this great tool to fight the latest google spam updates more easily. and I hope the author can do a great update for this great plugin!!!!
Read on wp.org ↗ - ★★★★★ fff6544.0y ago
You need to register and pay for the API, no complain, this is clearly said before even installing, so all good here (user complaining on that is unfair) The plugin is very easy to install and use Admin and user setting are very good Many options to check plagia when user want … but it is pushing to sell more 😉 … and that can cost very quicly several dollars per articles if you don’t pay (pun intended) attention So please, copyscape team: – optional: by defaut, deactivate all automatic checks. Users may select them back – nice to have: do indicate the remaining credit on the account in the post edit page – a must: do indicate how much credits it will cost to check, BEFORE CHECKING
Read on wp.org ↗ - ★★★★★ yesorcayes5.6y ago
A must plugin for serious writer
Read on wp.org ↗ - ★★★★★ zorrosales7.0y ago
This plugin is a worthless. There is nothing free, not even one trial search. When you go to there website they sell credits, but they don’t tell you what the credits are worth or how many searches you get. These people are not transparent and only want your money without even telling you what they will give you for it. They should be banned from being on wordpress.
Read on wp.org ↗ - ★★★★★ shannon0071111.6y ago
when i click copyscape check on post page, it shows “Copyscape was not able to check your post – you have no search credits remaining.”, so i must pay this plugin if i want to use it. Not much like this. I thought it’s free.
Read on wp.org ↗ - ★★★★★ Sheive12.4y ago
If you concerned about duplicate content and Google rankings then you need some type of plagiarism checking software. I found CopyScape to be highly recommended, inexpensive, easy to use and multiple capabilities. I had a little trouble with the API, but I realized I was capitalizing the first letter on my user name. (Don’t capitalize the first letter of your user name.) Once I figured that out it works great! The WordPress detail page states CopyScape has not been tested with the latest version of WordPress(3.9.1), but I’m not having any problems.
Read on wp.org ↗
Security history
via Wordfence IntelligenceAll 2 disclosed vulnerabilities are patched in the current version (1.4.2). Sites still on an older version should update.
Vulnerability records provided by Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. License and terms.
CVE records: Copyright 1999-2026 The MITRE Corporation. CVE terms of use.
Behavioral tests
via WP HiveAutomated install-time checks, tested on PHP 8.1.12 · WP 7.0.1
AI assistants
How it's measured →Whether ChatGPT and Claude name this plugin when asked the category question, and whether the readme gives them something to quote.
Not measured yet for this plugin’s topics. Its tracked searches are not among the measured topics. See the topics measured so far.
Readme readiness
4 of 8 pass · checked 29 Oct 2026Can an assistant quote this readme? Eight deterministic checks over the wp.org listing, no model involved.
- ✓ Says what it does "The Copyscape Premium plugin lets you check if a WordPress post is unique before it's published, by searchi..."
- ✓ Has a FAQ 6 questions in the FAQ.
- ✓ FAQ asks real questions 6 of 6 read like questions a user would type.
- ! Names who it is for Never says who the plugin is for or what they use it for.
- ! Names what it works with Names no plugin, service or platform it works with.
- ! Headings and lists 0 headings and 0 lists; assistants quote headed sections and bullet lists, not paragraphs.
- ! Enough to quote 770 characters of description; under 1,000 there is little to quote.
- ✓ Tags match the text 4 of 5 tags appear in the text; "plagiarism" does not.
Growth timeline
Install-tier crossings we have observed, and how long each tier took to outgrow
- 2026-10-24 800+ → 700+ down after 23 days in tier
- 2026-10-01 700+ → 800+ up after 1 days in tier
- 2026-09-30 800+ → 700+ down after 1 days in tier
- 2026-09-29 700+ → 800+ up after 1 days in tier
- 2026-09-28 800+ → 700+ down after 94 days in tier
- 2026-06-26 900+ → 800+ down after 19 days in tier
- 2026-06-07 1K+ → 900+ down after 335 days in tier
- 2025-07-07 2K+ → 1K+ down after 1007 days in tier
Competes with
The plugins that solve the same job, ranked by shared tags then reach, closest match first. The letter on the right is each plugin's health grade (A best, F worst).
- P Plagiarism 60+ installs · 3.6★ · 2 shared tags D
- P Proofread Bot 40+ installs · 3.9★ · 2 shared tags D
- C Copyscape Post Checker 30+ installs · 3.5★ · 2 shared tags D
- W WordBinary Self Plagiarism Checker — installs · 3.6★ · 2 shared tags
-
ContentTrace — installs · 4.0★ · 2 shared tags B - A Advanced Custom Fields: Unique ID Field 3K+ installs · 4.3★ · 1 shared tag D
Embed this report card
Drop a live Pulse card for Copyscape Premium into a readme, a review or a deck. It updates itself.
<iframe src="https://plugins.wpmayor.com/embed/copyscape-premium" width="480" height="300" style="border:0" loading="lazy" title="Copyscape Premium — Plugin Pulse"></iframe> Copyscape Premium: 700+ active installs, 3.2★ (10 reviews). Plugin Pulse (WP Mayor), as of 2026-10-31. https://plugins.wpmayor.com/plugin/copyscape-premium
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