Ecommerce SEO contracts: clauses to check before signing

What to take away

Treat an ecommerce SEO commercial contract as a supplier agreement, not a marketing formality: the terms decide who carries risk when data, rankings or ad claims go wrong.
In England, the contract sits alongside the UK GDPR, the Privacy and Electronic Communications Regulations 2003 and the CAP Code, so clauses that ignore those rules are weak from the start.
Work through the clause list below before you sign, and keep evidence of what the provider will and will not do.
If your store sells to consumers, check cancellation, liability and data-processing terms with a qualified adviser; general guidance cannot settle an individual case.

Why do commercial terms matter more than the pitch?

A provider can sound convincing in a proposal and still leave your store exposed. The contract is where promises become obligations. It should say what work is done, who owns the output and what happens if targets slip.

English law (the law of England and Wales) decides the default position when the paperwork is silent, and the Data Protection Act 2018 sets much of the background rulebook when a provider handles personal data. A written governing law and jurisdiction clause keeps any dispute in a forum both sides expected, which shortens the path to a remedy.

For an English retailer, the wider duties sit in the Data Protection Act 2018, the UK GDPR and the Privacy and Electronic Communications Regulations 2003. Our UK rules and compliance guide for ecommerce SEO maps those duties around a store SEO programme and shows which contract clauses are really compliance clauses in disguise.

Which data protection clauses should you expect?

Any SEO provider touching analytics, customer lists or tag management is processing personal data. The ICO's Guide to Privacy and Electronic Communications Regulations explains the cookie and electronic marketing rules that apply to store tracking. A contract should name the lawful basis, retention period and security measures.

Data protection clauses to check

Name the lawful basis for processing
Set retention period for personal data
Specify security measures in place
Include data-processing agreement terms
Name sub-processors used by provider
Set UK transfer safeguards

If your store runs on Shopify, the platform's own privacy policy sets out how merchant and customer data is handled at platform level. Your agency terms must not contradict it. Ask for a data-processing agreement wherever the provider processes personal data on your behalf. Under the UK GDPR that makes it a processor acting under your authority, while your store, as controller, decides why and how the data is used.

A data-processing agreement under Article 28 of the UK GDPR should name the controller and the processor, the subject matter and duration of the processing, the sub-processor list and how new sub-processors are approved, breach notification timescales, retention periods and the security measures in place. Ask for the provider's ICO registration number and keep it with the signed contract.

Where the provider uses sub-processors or moves data outside the UK, the terms should name them and set out the transfer safeguards in use, normally the ICO's International Data Transfer Agreement or the International Data Transfer Addendum to the EU standard contractual clauses.

What should the disclosure and claims clauses cover?

Paid links, affiliate arrangements and sponsored content need clear labels. The contract should say who applies those labels, where they appear and who checks them, so shoppers are never left guessing what was paid for.

The ASA's sanctions page shows what can follow an advertising breach, from published rulings to referral to Trading Standards. A contract should make the provider responsible for substantiating claims it writes and for correcting them promptly.

The terms should also say who signs off ad copy before it goes live, because a published claim cannot be quietly withdrawn once a complaint is made. For ranking or performance claims, the CAP Code's misleading advertising rules in section 3 are the benchmark.

Which commercial clauses should the contract carry?

The compliance points sit alongside the commercial terms that decide what happens when work goes wrong. Ask for each of the following to be written into the contract rather than left in the proposal.

Contract scoring rubric

Area

Scope and deliverables: Named pages, tasks, reporting cadence
Data protection: Lawful basis, retention, security, processor terms
Disclosure and claims: Labelling rules and substantiation duties
Ownership and exit: IP, content, accounts and handover
Liability and termination: Caps, notice periods, remedies

What good looks like

Scope and deliverables
Data protection
Disclosure and claims
Ownership and exit
Liability and termination

Scope and deliverablesthe work included, the reports you receive and how often, and what counts as delivered.
Fees and paymentthe fee, what it covers, invoicing dates, payment terms and any fee-review mechanism.
Term and renewalthe start date, the minimum term, and whether the contract renews automatically.
Change controlhow extra work is requested, priced and approved in writing before it starts.
Confidentialitywhat the provider may not disclose about your sales, customers and strategy, during and after the contract.
Intellectual propertywho owns the content, images, code, analytics property and ad accounts at handover, and whether the provider keeps a licence to reuse the material.
Liabilityany cap on the provider's liability, the losses it excludes, and the risk the store is left carrying.
Terminationnotice periods, whether fees continue after termination, and how accounts, files and data are handed back.
Service levelsdelivery or uptime metrics, response times, and the remedy when they are missed.
Warranties and indemnitieswhat the provider promises about its work, for example that content it supplies does not infringe anyone's rights, and who pays if a third party claims it does.
Insurancewhether the provider holds professional indemnity cover, and evidence of it on request.
Subcontractors and personnelwho else works on the account, how changes are approved, and who carries the off-payroll working (IR35) risk where the provider supplies individuals through their own companies.

Anything left vague in these clauses is a reason to ask questions before signing. For example, a team paying £2,000 a month for store SEO should expect a clear data-processing schedule at that price.

What should you check before you sign?

Compare the contract against the provider's public promises. If the proposal claims guaranteed rankings, the contract should explain how that is measured and what happens if it is not met.

Check who owns the content, the analytics property and the ad accounts. Check notice periods and whether fees continue after termination. Check that any subcontractor is named or covered by approval terms.

Diarise the notice date so the deal does not renew by default while you are mid-campaign.

Finally, keep the signed version and any schedules together. If a dispute arises, the written terms and the evidence of what was delivered will matter more than the original pitch.

Common questions

Does an ecommerce SEO contract need a data-processing agreement?

Where the provider handles personal data, yes. The ICO's PECR guidance and UK GDPR set the expectations, and the agreement should record the lawful basis, retention and security arrangements.

Can a contract require guaranteed first-page rankings?

It can include targets, but guarantees are hard to enforce and can conflict with advertising rules if they become misleading claims. Treat any guarantee as a promise to be tested against evidence, not a certainty.

Who is responsible for labelling paid links?

Responsibility is shared. The store owner and the provider should agree in writing who applies labels and who checks them, using the CAP Code and ASA sanctions guidance as the benchmark. Individual cases need a qualified adviser.