See what changed in a policy or terms page

Capture a supplier's terms, a privacy policy or a subprocessor list as it reads today. Check it whenever you choose and DiffNexa shows exactly what changed, which part of the document it sits in, and the wording behind it.

1Baseline

The page as it was

Drag your baseline file here, or

Choose baseline file

No baseline yet? Capture the page as it is today.

Uses the page address in step 2.

2Policy page to check

Read live when you check

Policy page address

For example, example.com/privacy

What kind of document is this?

Your own label for the page. It does not change how the page is read.

Add a baseline: choose the file you saved, or capture the page now.

Compares two saved versions of a fictional company's terms of service — no address, no account and no baseline of your own needed.

DiffNexa reads the page and discards it once your result is ready. Nothing about the page is stored, there is no account, and the comparison sends nothing to any AI service. DiffNexa reports what changed, not what it means — it does not give legal advice.

What is Policy & Terms Monitor?

Policy & Terms Monitor compares a published policy or agreement with the version you saved earlier, and shows what changed and which part of the document each change belongs to. It is built for the documents organisations rely on and rarely re-read: a supplier's terms of service, a privacy policy, a data processing agreement, a subprocessor list, a refund policy.

These documents change quietly. An update notice, if there is one, rarely says exactly what moved, and a few changed words in a retention period, a cancellation notice or a fee clause can change what you have agreed to. Seeing each change next to the words it replaced lets you decide for yourself whether it matters.

How it works

Step 1
Capture the page
Enter the address and say what kind of document it is. DiffNexa reads the page and saves what it says to a small file.
Step 2
Keep the file
That file is your baseline. It stays on your computer — there is no account to create.
Step 3
Check when you choose
Upload the baseline and DiffNexa reads the page again, showing what is different now.

What DiffNexa shows you

Exactly what changed: The wording before and after, with figures and dates compared as values: 12 months becoming 24 months is one change, not two.
Which part of the document it sits in: Changes are matched to parts of an agreement — data retention, cancellation, fees, governing law — using the page's own headings and wording.
The wording behind every change: Each change quotes the text it came from in both versions, so you can verify it rather than take it on trust.
What did not change: Parts of the document DiffNexa found but detected no changes in are listed separately from parts it did not find at all.

The parts of an agreement it recognises

Alongside each change, DiffNexa names the part of the document it sits in when the page's headings and wording make that clear, using fixed rules rather than AI. A change it cannot place is shown without a topic rather than given a guessed one.

Liability
Warranties
Fees and pricing
Payment terms
Refunds
Cancellation and termination
Automatic renewal
Data retention
Data sharing
Your data rights
Licence and ownership
Acceptable use
Governing law
Disputes

Policy Monitor or Website Change Detector?

Policy & Terms Monitor

For agreements: privacy policies, terms of service, data processing agreements, subprocessor lists, cookie and refund policies. Alongside each change it names the part of the document it sits in, such as data retention, cancellation, fees or governing law.

Website Change Detector

For any public page — pricing, documentation, product pages. The same comparison, without the document-specific grouping.

What happens to the pages you check

DiffNexa's server reads the policy page you name as DiffNexaBot, once each time you capture or check it. Your baseline, including the document type you chose, is a file you keep. Nothing about the page or your result is stored by DiffNexa — see the Privacy Policy.

What this does not do

It does not watch pages for you. There is no scheduled checking, no alerts and no saved history — you check when you choose to.
It does not judge changes. DiffNexa shows what changed and where it sits. Whether that matters for your situation is a judgement for you or your lawyer, and nothing here is legal advice.
It does not read pages behind a login, pages that build their content in the browser, or PDF documents. For a PDF policy, use PDF Compare.
It reads the one page you name. A policy split across several pages needs a baseline for each.

Optional: AI Change Analyst

After a check, AI Change Analyst can summarise what changed in the policy in plain language and suggest which changes look significant — without giving legal advice. Every statement cites a change and its wording from the comparison.

How AI Change Analyst works

Questions

What types of policy pages can I monitor?: Any public web page that holds a policy or agreement: privacy policies, terms of service or terms and conditions, data processing agreements, subprocessor lists, security, cookie and refund policies. The page's text must be in the page itself — pages behind a login, or that assemble their content in the browser, can't be read yet.
How are policy changes identified?: The same deterministic comparison as Website Change Detector: the page is read again and compared with your baseline, section by section, with figures and dates compared as values. Each change is then matched to a part of the agreement — such as data retention or cancellation — by fixed rules that read the page's headings and wording.
Does DiffNexa watch the page for me?: Not yet. You check when you choose to. There is no scheduled checking, and no alerts or email.
Do I need an account?: No. Your baseline is a file you keep. DiffNexa stores nothing about the pages you check.
Does this tell me whether a change is bad for me?: No, and it will not pretend to. DiffNexa shows what changed and where it sits in the document. Whether that matters for your situation is a judgement for you or your lawyer — this is not legal advice.
What about PDF policies?: Use PDF Compare for those. This tool reads web pages.

Website Change Detector
Compare a public web page against a baseline you saved and see exactly what changed.
Competitor Monitor
Compare a competitor’s public page against your saved baseline and see what changed.