As of 13 August 2026, AI can only partly check your website copy for plagiarism.
This still needs a person who signs their name to it.
Can you do it?
15 minutesto a draft.
n/ait cannot be self-verified.
Cost, all in£0
Skill neededchat-fluent
Who has to check ita professional
What the alternative costsThe supplied tool data does not give a price for a specialist plagiarism-checking service.
If this goes wrong: you publish copied wording, accuse an innocent writer, or rely on a clean result that missed the relevant source.
What to actually do
Hand it to a person
The route this page recommends
Someone with a licence or accountable authority has to sign this before it counts.
Use a tool built for this
Second choiceDo it yourself
The distant thirdA chat interface gets you a draft, but you cannot verify it yourself. That is the catch.
How to actually do it
- Open the published webpage and copy its complete visible text, including headings, product descriptions, navigation text and any boilerplate that you want checked.
- Gather the source URLs, briefs, competitor pages or supplied documents that may have influenced the copy, and paste their relevant text into a separate document.
- Paste the copy, source material and URLs into the prompt, then ask the chatbot to produce the preliminary phrase-matching table.
- For every distinctive phrase the chatbot flags, search the exact wording in quotation marks using a search engine and open the earliest relevant result you can find.
- Compare each flagged passage with the source page, record the URL and publication date where visible, and remove matches that are ordinary industry wording or your own existing text.
- Send unresolved or commercially important matches, together with the draft and source record, to a solicitor or specialist plagiarism-checking service before publishing.
Prompt
Screen the website copy below for possible unattributed overlap with the source material and URLs I provide. Flag exact or unusually distinctive matching phrases, put them in a table with the copied wording, the possible source, and why the match matters, and distinguish common wording from distinctive wording. Do not claim that the copy is plagiarism or original: this is only a preliminary screen based on the material supplied. Do not invent sources, quotations or confidence levels. State which parts you could not check and give me a short list of searches to run using exact phrases in quotation marks. Website copy: [PASTE WEBSITE COPY HERE] Known source material or URLs: [PASTE SOURCE MATERIAL OR URLS HERE]
Open it prefilled in ChatGPT or Claude, or copy it into Gemini, which takes no prefill link.
What it gets wrong
- A chatbot cannot search every web page, database, paywalled publication or unpublished document that might contain similar wording.
- It cannot reliably distinguish independent common phrasing from copying when the wording is short or the subject uses standard terminology.
- It cannot prove that a page was the first source or establish who owns the wording.
- It cannot give you a defensible legal conclusion about copyright infringement or plagiarism.
- It cannot transfer responsibility for what you publish or for an accusation made against another writer.
What caps this at PARTLY: verification cost, real time truth and stakes of error.
How we scored this
Five axes, each scored nought to two by hand: ten means AI carries the task cleanly, and the thresholds that turn a total into YES, PARTLY or NO are published in the methodology. Each axis name links to its definition.
| Axis | Score (0–2) |
|---|---|
| Output | 1 |
| Inputs | 1 |
| Verification | 0 |
| Liability | 1 |
| Effort delta | 1 |
| Total | 4 / 10 |
The methodology and its thresholds are published in full.
FAQ
- Can ChatGPT check my website copy for plagiarism?
- It can screen text that you provide and flag possible phrase matches, but it cannot prove that your copy is original or search every relevant source. Use its output as a shortlist for exact-phrase searches, not as a definitive plagiarism report.
- Is AI plagiarism checking accurate?
- It can be useful for obvious or distinctive overlaps, but a clean result can miss unindexed, paywalled or newly published material. Check each flagged passage against the source and use a specialist service or solicitor when the consequences matter.
- Can AI tell if website content is copied?
- AI can identify wording that looks similar when it has the relevant copy or source available. It cannot reliably establish whether the similarity is copying, common industry language or independently written text.
- What is the best way to check my website copy for plagiarism?
- Start with an AI screen, then search distinctive phrases in quotation marks and compare the results with the source pages. For important commercial copy or a possible dispute, have the evidence checked by a solicitor or a specialist plagiarism-checking service.
Nearby answers
Assessed by gpt-5.6-luna (gpt-5.6-luna) on 2026-08-13, second-checked by an independent model. Wrong somewhere? Email [email protected] and it gets re-checked.
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