Google Ads negative keywords: review search terms before excluding them

Start with the offer and the visible search terms

Write down what the business sells, the audience it serves, and the situations it cannot serve. Then review the Google Ads search terms report for the campaign and period you mean. Google shows how this report can inform negative keyword choices.

Keep a review table with the query, campaign, cost, conversions, relevance, proposed action, and reason. Do not ask an assistant to classify intent from a keyword alone when the business context could change the answer. A query containing “free” can be a poor fit for one offer and a valuable acquisition path for another.

Separate a mismatch from a small sample

Consider this hypothetical project-management software account. The numbers below are illustrative, not performance claims.

The first row has an offer mismatch. The third row needs more evidence. Check conversion delay, attribution, and the destination before treating it as wasted spend. Google explains why conversions may arrive after the click date.

Choose match type deliberately

For Search, negative broad match excludes a search containing all the negative's terms, regardless of order. Negative phrase match requires the terms in that order. Negative exact match excludes that exact query without extra words. These rules differ from positive keyword matching. Google provides the current negative match-type rules.

Google currently accounts for casing and misspellings in negative keywords. Synonyms and singular or plural forms still need separate consideration. Do not assume the full positive-keyword close-variant behavior applies to exclusions.

Choose the smallest appropriate scope

A query can be irrelevant to one ad group and useful to another. An employment query may be irrelevant across a software sales campaign, while a product-specific query may simply belong in a different campaign. Review campaign and ad-group context before choosing where the negative belongs.

Keep global exclusion lists limited to intent the whole business rejects. Review shared lists before applying them to another client, region, or offer. A reusable review process is safer than a supposedly universal list of hundreds of negatives.

Record why the exclusion exists. A future account manager should be able to distinguish an intentional business boundary from a short-lived experiment or an old offer.

Ask AI for a review table, then a preview

Approve only the candidates you have reviewed. For a supported write, request the exact preview with the intended account, scope, and match types. Check that broad and phrase exclusions do not block valuable longer queries. Do not let a model silently expand a reviewed list into a larger one.

Applying an Adport preview requires its matching pending operation and identical arguments. Changes to terms, match type, or scope need a new preview.

Review the effect after the change

Read back the exclusion list and keep the approved reason in the change record. On the next review, look at search intent, delivery, and conversion quality together. Lower spend alone does not establish that an exclusion improved the business outcome.

If a relevant query was blocked, remove or narrow the exclusion through the appropriate reviewed workflow. Keep a dated record of that reversal so another operator does not re-add the same negative from an old checklist. For the wider investigation, use the Google Ads audit checklist.