playbook-google-site-search

Playbook: Google site: Keyword Filter

All rules here are best practice, not law. Override any of them when the campaign calls for it; note the best practice once and move on.

Use when: a campaign needs to know whether each company's own website talks about a specific thing — a certification, a technology, a service line, a location, a program name — and no structured API sells that field.

Do not use when: you need to find companies you do not have yet; when the thing you want is a page rather than a phrase (playbook-pricing-page, playbook-case-study-page); or when a real filterable field already exists (funding stage, headcount, technology installed) — filter at the source and skip this entirely.

One-line output: site_keyword_line = "you hold SOC 2 Type II certification", rendering as Noticed you hold SOC 2 Type II certification.

1. Trigger and scope

You have a list of domains. Someone asks "which of these mention X on their website?"

It does two jobs at once, and you should know which one you are buying. As a filter it tells you which rows to keep — that half is reliable. As a personalization signal it gives you an evidence URL and a line — that half needs the confidence gate in §2, because a page can contain your keyword for reasons that have nothing to do with the company.

It does not prove a company lacks something. The index is incomplete and its results are not even stable between two identical calls a minute apart (measured). An empty result means "not found in the index today", never "this company does not do X".

The rule that defines this playbook: one keyword, one query

site:acme.com "chess". Never site:acme.com ("chess" OR "checkers" OR "board games").

Measured:

Query	Precision
site:n8n.io "SOC 2"	10/10 results contained the phrase
the same domain with a 7-term OR chain	4/10
site:uschess.org "Brooklyn"	8/10 on target
the same with an OR chain	2/10, and it drifted to a chess house in New Orleans