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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.
Linkody
Deep backlink and link-building research capabilities are documented, including metrics, anchor text, competitor gaps, link status, and disavow analysis.
Read the full reviews: Linkody and WebPageTest.
Official homepage documents backlink analytics, competitor Link Intersect, metrics, 24/7 monitoring, and disavow: https://www.linkody.com/
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.
Linkody
Only narrow keyword-related analysis is evidenced: backlink anchor keywords and anchor-text distribution, not keyword discovery or search-volume research.
The official homepage mentions backlink anchor text and keywords, while the anchor tool classifies keyword anchors: https://www.linkody.com/ and https://www.linkody.com/en/seo-tools/backlink-anchor-text-analysis
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.
Linkody
No content brief, generation, optimization editor, or publishing capability was found on reviewed official pages.
Reviewed product, pricing, free-tool, and help-center pages describe backlink workflows and reporting but no content execution: https://www.linkody.com/
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.
Linkody
Competitor backlink context and backlink-profile context are supported, but internal-company, third-party-app, and custom-API context are not broadly documented.
Link Intersect and competitor-profile comparison are documented on the homepage: https://www.linkody.com/
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.
Linkody
No AI-search, generative-engine optimization, citation monitoring, or GEO workflow was found.
No AI/GEO capability appears on the reviewed official product and pricing pages: https://www.linkody.com/ and https://www.linkody.com/en/plans
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.
Linkody
No geographic SEO or AI-search geographic readiness feature was found; hosting country is a backlink metric, not a GEO workflow.
The checker documents hosting country only as backlink data: https://www.linkody.com/en/seo-tools/free-backlink-checker
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.
Linkody
Backlink health can expose lost or changed links, but Linkody is not a site crawler or technical audit suite.
The official feature set centers on backlink monitoring and disavow work, not indexability, metadata, status-code, or site-health crawling: https://www.linkody.com/seo-tools/backlink-monitor/
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.
Linkody
No editorial calendar, content publishing, CMS publishing, or approval workflow was found.
Reviewed official product and help-center pages focus on link management/reporting rather than publishing: https://www.linkody.com/helpcenter/en
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.
Linkody
Strong backlink measurement: 24/7 monitoring, historical top metrics, email reports, link status changes, competitor tracking, and exports.
Homepage and pricing page document 24/7 monitoring, reports, metrics, analytics, and CSV/PDF exports: https://www.linkody.com/ and https://www.linkody.com/en/plans
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.
Linkody
Supports team/client management with roles, domain access controls, multi-user plans, and white-label client reports.
Team/client management and role/domain permissions are documented on the homepage; user limits are listed on pricing: https://www.linkody.com/ and https://www.linkody.com/en/plans
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.
Linkody
Low-priced entry plan, annual discount, 30-day no-card trial, and cancellation to a free plan provide good accessibility.
Current prices, annual savings, trial terms, and free-plan conversion are stated on the official pricing page: https://www.linkody.com/en/plans
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.
Linkody
A time-limited trial gives useful access before payment, but there is no permanent free plan.
The official pricing page advertises a 30-day free trial: https://www.linkody.com/pricing/
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.
Linkody
No auditable customer count was found; named customer logos/testimonials and a Capterra rating do not establish a customer total.
The homepage shows named logos/testimonials and a 4.9/5 Capterra customer-service claim but no customer count: https://www.linkody.com/
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.
Linkody
A documented REST API with domain, competitor, and link CRUD/read operations provides a modest automation surface, but no agent-specific interface is documented.
Official API documentation describes REST/JSON, paid access, token auth, and domain/competitor/link endpoints: https://www.linkody.com/api/v1
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.
Linkody
Automatic 24/7 monitoring and email alerts reduce manual work, but the official workflow does not claim autonomous strategy, outreach, or publishing.
Homepage documents automated monitoring, discovery alerts, and email reports, while no autonomous agent workflow is documented: https://www.linkody.com/
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