Most agency owners shopping for SEO focus on the monthly fee. That's understandable, but the fee is an output — it reflects the inputs required to move your specific site in your specific market. Before comparing quotes, it helps to understand what's actually being priced.
Your Current Domain Authority
A newer agency domain with minimal backlinks needs more foundational work — technical cleanup, content creation, and link acquisition — before rankings move. An established agency with a 5-year-old site and existing content may need mostly optimization and gap-filling. Same goal, different investment.
Keyword Competition
"Marketing agency [city]" is a different fight than "B2B content marketing agency for SaaS." Broad, high-volume terms attract more competition and require more sustained effort. Niche or service-specific keywords often move faster and convert better — and may cost less to pursue.
Scope of Services
SEO isn't one thing. A retainer might include technical audits, on-page optimization, content production, digital PR and link building, local SEO for your office location, and monthly reporting. Or it might include only two of those. Comparing quotes without comparing scope is like comparing renovation bids without specifying what rooms are being renovated.
Geographic Market
Ranking in a mid-sized regional market costs materially less than competing in New York, Chicago, or Los Angeles. If your agency targets national clients, the competitive set expands further. Providers price their labor and link acquisition accordingly.
Bottom line: when a provider quotes you, ask what's explicitly included, what's out of scope, and what assumptions they're making about your starting point. That conversation tells you far more than the number itself.