Olga Zarr
SEO Consultant & CEO at SEOSLY
Poland · Polish
Olga Zarr is a Polish independent SEO consultant and the founder of SEOSLY, a consulting practice she launched after more than seven years agency-side. With over 13 years of SEO experience, she specialises in technical SEO, in-depth site audits, on-page optimisation, and complex site migrations.
Her current work focuses on the intersection of SEO and AI search, building on an audit methodology she has since codified into a paid training product. Through the SEOSLY newsletter, podcast, and YouTube channel, she has become one of the most visible independent voices teaching technical SEO.
Key facts about Olga Zarr
- Founded SEOSLY in 2020 after seven-plus years agency-side, including at Performance Group.
- Has completed more than 200 in-depth technical SEO audits for client sites worldwide.
- Released the SEO Audit Mastery Course in 2025, codifying her audit methodology as a paid product.
- Publishes the SEOSLY newsletter with more than 10,000 subscribers.
- Regular contributor to Search Engine Land and Search Engine Journal.
- Spoke at SEO Charity's SEO for Paws charity live stream in September 2025.
- Repeatedly listed among the top female SEO experts worldwide.
What Olga Zarr is famous for
Olga Zarr is the go-to name for productised technical SEO auditing, with her SEOSLY tutorials and SEO Audit Mastery Course serving as a default reference for practitioners learning how to structure a complete site audit.
Notable work
- Course: SEO Audit Mastery Course
- Newsletter: SEOSLY Newsletter
- Podcast: SEOSLY Podcast
- Youtube: SEOSLY YouTube Channel