Wayback Machine: see how a competitor’s website has changed
The Internet Archive's free record of past versions of websites, useful for tracking a rival's pricing, positioning and product history.
Google Ads Transparency Center: see an advertiser’s Google ads
Google's free, searchable hub of ads from verified advertisers across Search, YouTube and Display, showing where ads ran, when they last ran and their…
Meta Ad Library: see competitors’ ads on Facebook and Instagram
Meta's free, public search of ads running across its apps. Filter by country, category, platform and date to study competitors' creative and offers.
Similarweb: estimate any website’s traffic and audience for free
Similarweb's free website pages estimate visits, engagement, top countries, demographics and similar sites. Fuller breakdowns and exports need registration or a paid plan.
AnswerThePublic: find the questions people ask about a topic
Enter a keyword and see the questions, comparisons and phrases people search for. A small free allowance, with paid plans for regular use.
Google Trends: test demand and seasonality with search interest
Google's free tool shows relative search interest over time and by place, with related searches that reveal how people describe a need.
