Agencies use SEO tools differently from in-house teams. They research many domains across industries, pitch prospects with competitive analysis, run audits for multiple clients, and report results on a regular schedule. The right platform needs to handle volume and client separation without costs spiraling, and it must produce reports that clients understand.
Updated September 25, 2026 · 2 picks · selections are editorial and never sponsored
We compared these tools on the factors that matter most for agency work: depth of competitive and backlink research, support for managing many client projects, reporting and sharing options, and breadth beyond organic search for agencies that also offer paid or content services. Both leading suites are capable, so the decision usually hinges on your agency's service mix.
Quality of keyword, traffic and backlink data for researching clients and competitors.
Projects, limits and seats that scale with a growing client roster.
Report building, scheduling and sharing options suitable for client delivery.
Coverage beyond organic SEO for agencies that also run paid, content or local campaigns.
| Criterion |  Semrush |  Ahrefs |
|---|---|---|
| Keyword research | Extensive keyword and intent data | Deep keyword research tools |
| Backlink data | Large backlink database | Industry-leading backlink index |
| Site audit | Thorough technical audit | Fast, visual technical audits |
| Rank tracking | Flexible position tracking | Reliable rank tracker |
| Content tools | Strong content marketing toolkit | Content Explorer for research |
| Pricing | From $117.33 | From $129 |
| Editorial score |
Semrush suits full-service agencies because it covers SEO, paid search research, content marketing and local tools in one platform with project-based client management.
The number of tools and add-ons can make plan selection and costs complex for growing agencies.
Ahrefs is a strong fit for SEO-focused agencies that lean on backlink analysis, competitor research and content gap work for pitches and strategy.
Agencies offering paid search or broader marketing services will find its coverage narrower, and usage-based limits need monitoring.
Both leading suites support reporting, but they differ in report builders, branding options and scheduling by plan. Agencies should test how easily they can produce the specific reports their clients expect.
Compare the limits on projects, tracked keywords, audit crawls, reports and seats against your current and expected client load. These limits usually determine the real cost more than the base subscription.
Many agencies standardize on one suite for efficiency. Some specialist agencies add a second tool to cross-check data or cover a gap, but it is not a requirement.