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Tool comparison
Both tools graded on the same fifteen criteria. The verdict lists the criteria where one tool leads the other by two points or more.
Verdict
Verdict
These tools solve different jobs. Scores are shown against each tool's own category, so the overall grades are not directly comparable. How grades work.
Research depth
Discovery
How well the tool supports keyword, competitor, SERP, backlink, or market research before execution.
AgencyAnalytics
Solid reporting and performance research across marketing channels, with SEO depth depending on connected integrations and add-ons.
Read the full reviews: AgencyAnalytics and WebPageTest.
The homepage and integrations page show Ask AI, anomaly detection, benchmarks, forecasting, Google Search Console, Ahrefs, Semrush, Moz, Majestic, BrightLocal, PageSpeed, Lighthouse, and rank tracking add-on support.
WebPageTest
Deep page-performance diagnosis, but no keyword, SERP, competitor, backlink, or market research workflow.
WebPageTest diagnoses DNS, TCP, TLS, loading, rendering, and Core Web Vitals for tested pages. https://www.webpagetest.org/
Keyword research quality for SEO content
Discovery
How well the tool identifies, qualifies, clusters, and prioritizes keywords specifically for SEO content creation.
AgencyAnalytics
Limited native keyword research for content planning; stronger as a reporting layer for rankings and SEO data.
Public pages emphasize dashboards, reports, integrations, and a Rank Tracker add-on, but do not show keyword discovery, clustering, or content opportunity prioritization as a core workflow.
WebPageTest
No keyword discovery or keyword-volume workflow is documented.
The official product pages describe performance tests, Core Web Vitals, and diagnostics, but provide no keyword-research feature. https://www.webpagetest.org/
Content execution
Execution
How well the tool helps produce, optimize, or operationalize SEO content.
AgencyAnalytics
Not built to produce, optimize, or publish SEO content.
Reviewed homepage, pricing, features, and integrations evidence focuses on client reporting, dashboards, AI insights, portals, alerts, and marketing data integrations rather than article generation or CMS publishing.
WebPageTest
No content briefing, generation, or optimization workflow is documented.
The pricing feature list covers testing, Lighthouse, Opportunities, scripts, API, and Experiments, not content execution. https://www.webpagetest.org/signup
Context gathering
Grounding
How well the tool gathers the business, competitor, SEO, internal, third-party, and custom API context needed for differentiated recommendations and content.
AgencyAnalytics
Strong third-party marketing and SEO data gathering for agency reporting, weaker for first-party business strategy context.
AgencyAnalytics consolidates 85+ integrations, client dashboards, goals, alerts, custom metrics, database connectors, SEO integrations, and AI analysis, but public pages do not show broad ingestion of ICP, offer, sales, or support knowledge.
WebPageTest
Grounded in detailed page-load, browser, network, device, and CrUX data, not business or broad SEO context.
Users configure browser, region, device, and connection for performance tests and can compare lab and field metrics. https://www.webpagetest.org/webvitals
AI-search / GEO
Visibility
How directly the tool helps teams improve visibility in AI answer engines and citation-oriented search journeys.
AgencyAnalytics
Some AI-assisted reporting value, but little direct AI-search or citation-specific workflow.
Public pages mention Ask AI, AI summaries, MCP access for ChatGPT and Claude, and AI-powered insights, but not AI-search citation monitoring, answer-engine optimization, or GEO publishing.
WebPageTest
No generative-engine optimization feature is documented.
The official pages mention SEO rankings via Core Web Vitals but do not claim generative-search visibility, citation tracking, or AI-search optimization. https://www.webpagetest.org/
GEO readiness
Visibility
How ready the tool is for generative engine optimization: answer-engine visibility, citation likelihood, AI-search prompt surfaces, and content structures that AI systems can use.
AgencyAnalytics
Indirect GEO support through reporting and AI analysis, not a dedicated answer-engine visibility platform.
AgencyAnalytics can report on connected SEO metrics and provide AI analysis, but reviewed pages do not show citation tracking, AI answer monitoring, or AI-usable content generation.
WebPageTest
No GEO capability in the generative-optimization sense.
The location capabilities are for performance testing geography, not generative-engine optimization. https://www.webpagetest.org/webvitals
Technical SEO
Diagnostics
How strong the tool is for crawling, audits, indexability, metadata, status codes, and technical site health.
AgencyAnalytics
Moderate technical SEO reporting through integrations, not a crawler-first audit product.
The integrations page lists Google Lighthouse, Google PageSpeed, Google Search Console, Bing Webmaster Tools, and multiple SEO data providers, but public positioning remains reporting rather than crawl diagnostics.
WebPageTest
Very strong Core Web Vitals and page-performance diagnostics.
The homepage explicitly connects WebPageTest to Core Web Vitals and SEO rankings; Tips also lists CrUX, Lighthouse, in-depth metrics, waterfalls, and API/integrations. https://www.webpagetest.org/tips.php
Publishing workflow
Operations
How well the tool moves work into CMS, publishing, approvals, or automated production workflows.
AgencyAnalytics
Strong report scheduling and client delivery, but no confirmed CMS publishing workflow.
Pricing lists unlimited reports, dashboards, report scheduling, report approvals, white-label branding, client portal, and exports, while no public evidence showed WordPress, Shopify, or article publishing automation.
WebPageTest
No CMS, editorial calendar, or publishing integration is documented.
The documented integrations are performance-testing/CI workflows rather than publishing workflows. https://www.webpagetest.org/tips.php
Measurement & tracking
Measurement
How well the tool monitors rankings, content performance, visibility, or ongoing SEO progress.
AgencyAnalytics
Excellent for ongoing agency measurement, dashboards, reporting, alerts, forecasting, and client visibility.
Homepage and pricing pages describe automated reports, custom dashboards, Ask AI, alerts, anomaly detection, trend forecasting, benchmarks, goals, budgets, client portals, and 85+ data integrations.
WebPageTest
Strong measurement, history, comparisons, and monitoring options.
Starter includes 60 days of history and Professional 13 months, while Professional adds scheduled tests, alerts, dashboards, and monitoring-oriented features. https://www.webpagetest.org/signup
Team collaboration
Operations
How well the tool fits multi-person workflows, agencies, approvals, handoffs, and repeatable processes.
AgencyAnalytics
Very strong agency collaboration with unlimited staff and client users, portals, approvals, and access controls.
Pricing states unlimited staff and client users, client portal, report approvals, access control, task management, client communication, white-label branding, and Enterprise support and training.
WebPageTest
Team seats, Slack results, and pull-request comments support engineering handoffs, without a broad SEO approval workflow.
WebPageTest documents Pro team members, Slack result sharing, and GitHub pull-request comments. https://www.webpagetest.org/tips.php
Value accessibility
Buying
How easy it is for a team to reach value relative to pricing, setup complexity, and required expertise.
AgencyAnalytics
Clear per-client pricing, free trial, and broad included features make value accessible for agencies with recurring reporting needs.
The pricing page shows Core pricing, annual savings, unlimited data sources, unlimited reports and dashboards, unlimited staff and client users, plus a free trial from the homepage.
WebPageTest
The core speed test is free and can run without an account.
The web-vitals page says users can run a free website speed test with no account, and Starter is listed at $0. https://www.webpagetest.org/webvitals
Free tools
Buying
How useful the tool is before payment through free tools, free plans, trials, or public utilities.
AgencyAnalytics
Useful 14-day trial, but no major always-free SEO utility was confirmed.
The homepage advertises a free 14-day trial with no credit card required; reviewed pages did not show a durable free plan or public free SEO tool set.
WebPageTest
Free tier includes substantial analysis rather than only a teaser.
Starter includes 150 monthly runs, Lighthouse, Opportunities, Filmstrip and Video, custom scripts, 30 locations, and Carbon Control. https://www.webpagetest.org/signup
Estimated customer scale
Market proof
Estimated customer or user scale based on public claims, with source claims stored separately for auditability.
AgencyAnalytics
Strong public agency adoption claim and review proof, though exact active paying-customer count is not disclosed beyond agencies served.
The homepage states AgencyAnalytics powers 7000+ marketing agencies and the footer cites 500+ reviews from G2 and Capterra.
WebPageTest
No numeric first-party customer count was found.
The homepage says it is trusted by top brands and shows logos, but does not state a numeric customer count. https://www.webpagetest.org/
Agent readiness level
Automation
How ready the product is to operate as or inside an AI agent workflow, based on tracked subcriteria for autonomy, controls, integrations, memory, and evaluation.
AgencyAnalytics
Strong emerging agent surface for reporting through AI analysis, MCP access, integrations, alerts, and database connectors.
Pricing lists MCP access for ChatGPT and Claude, Ask AI, AI Summary, custom metrics, 85+ integrations, database connectors, alerts, anomaly detection, forecasting, and report automation.
WebPageTest
APIs, scripting, custom metrics, and CI automation make tests programmable, but no dedicated autonomous SEO agent is documented.
WebPageTest documents API-controlled tests, scripting, GitHub automation, and a Node wrapper. https://www.webpagetest.org/tips.php
Ease of use and autonomous level
Automation
How easy it is for a team to reach useful outcomes, and how much work the product can perform autonomously after setup.
AgencyAnalytics
High autonomy for reporting, monitoring, and client-ready summaries after setup, but not for executing SEO changes.
AgencyAnalytics automates client reports, schedules dashboards, monitors alerts and anomalies, forecasts trends, and summarizes data with AI, while SEO implementation still happens outside the platform.
WebPageTest
Professional supports scheduled/automated testing and alerts, but not autonomous SEO decision-making.
Professional includes scheduled tests, customizable alerts, API access, and Experiments; the API material describes automation in CI/CD. https://www.webpagetest.org/signup