Verdict
Choose Nozzle when
- Research depth matters to you. Strong SERP research depth: full-result collection, snapshots, 400+ fields, historical storage and research workspaces.
- Keyword research quality for SEO content matters to you. Strong keyword/SERP insight and clustering, but not positioned as a broad keyword-volume/discovery suite.
- Context gathering matters to you. Gathers rich SERP, competitor, brand-property, local and GSC keyword context; no evidence of internal-company or arbitrary third-party app context.
- Team collaboration matters to you. Strong agency collaboration with unlimited users, multiple projects/clients, segments, aggregated views and report/BI exports.
Verdict
Choose PageSpeed Insights when
- Free tools matters to you. The complete PageSpeed Insights utility is available free on the public site.
- Technical SEO matters to you. Useful page-level performance and SEO diagnostics, but not a site-wide crawler or issue-management system.
Read the full reviews: Nozzle and PageSpeed Insights.