The honest starting point is that there is no official SEO certification. Google does not certify SEO professionals or agencies, and it does not run an exam that proves someone is good at search optimization. Google deliberately stays out of certifying expertise in its own ranking systems. So when an SEO company lists certifications, none of them are a stamp of approval on SEO itself. They are credentials in related skills and tools. Knowing which ones exist, and what each actually shows, helps you read an agency’s qualifications accurately instead of being impressed by a logo.
Google certifications worth recognizing
Google’s real certifications come through Google Skillshop, its free training platform. The two most relevant to an SEO company are the Google Analytics certification and the Google Ads certifications.
A Google Analytics certification shows that someone understands how to set up measurement, read reports, and interpret traffic and conversion data. That matters for SEO because the work is judged by results, and results live in analytics. An agency that cannot measure properly cannot prove its value to you.
Google Ads certifications cover paid search, display, and related campaign types. These are not SEO credentials at all. They are useful if you also want paid search managed, or if you value an agency that understands how organic and paid results interact on the same page. If your need is purely organic SEO, an Ads certification is a nice-to-have rather than a requirement.
Both Skillshop certifications are free to earn and expire annually, so a current one at least signals that the person is keeping their training up to date.
HubSpot and Semrush Academy
HubSpot Academy offers free courses and certifications, including an SEO training course and broader programs in content marketing and inbound marketing. A HubSpot SEO certification shows familiarity with core concepts and content strategy. It is foundational training rather than proof of advanced skill, and it is most meaningful if the agency actually works inside the HubSpot platform.
Semrush Academy provides free SEO, technical SEO, and content marketing courses built around the Semrush toolset, which many SEO teams use daily. A Semrush certification indicates the team knows how to run that specific software for tasks like keyword research, site audits, and competitor analysis. It is closer to a tool-proficiency badge than a general SEO qualification.
Partner statuses
Some agencies hold partner statuses with companies whose software they use, such as Google Partner status or partner tiers with SEO platforms. A partner status usually reflects a business relationship, certified staff, or a level of spend or usage, not independent verification of SEO results. Treat it as a sign the agency invests in tools and training, not as a guarantee of outcomes.
How to weigh a certification against real work
Certifications confirm baseline knowledge and tool familiarity. They do not show whether an agency can grow your traffic or rankings. The strongest evidence is always the work itself.
Ask to see specific results the agency has produced, the methods it used, and how it measured success. Ask how recent the certifications are, since outdated training in a field that changes constantly is less useful. Ask which team members hold the credentials, because a certification belonging to a leader who never touches your account tells you little.
A useful interview question is simply how the agency stays current. Strong SEO companies follow Google’s guidance, test changes, and learn continuously, with or without a certificate to show for it. Use certifications as a small supporting signal of professionalism and tool competence, then base your decision on demonstrated results, a clear process, and honest communication.