Moz vs SpyFu
A source-aware comparison of pricing, documented capabilities and workflow fit.
Short answer
- Price: not directly comparable — Moz is pricing not verified, SpyFu is pricing not verified.
- How to start: both are pricing not verified.
- Where they differ: only Moz has sso (saml); both offer public api.
These lines are generated from the pricing we track, not from a paid placement. How we score tools.
What Moz is
Moz provides SEO tooling: rank tracking, site audits, keyword research and its own link index and domain authority metric. Domain Authority remains its most-cited output, useful as a rough comparative signal rather than a target to chase. Its link index and keyword data are smaller than the leading crawlers, which is the trade for a gentler interface and price.
What SpyFu is
SpyFu shows which keywords competitors bid on and rank for, with historical data going back years. That archive is the reason to use it: rather than a snapshot of today's rankings, you can see how long a competitor has defended a term, which ad copy they kept running, and which campaigns they abandoned. Coverage is strongest for the US market and thinner elsewhere, and the data is modelled rather than taken from ad accounts, so treat the figures as direction rather than measurement.
Side by side
What Moz is built to do
- Link index and Domain Authority
- Reports referring domains and a comparative authority score.
- Keyword research
- Estimates volume and difficulty for target queries.
- Site crawl
- Audits pages for technical and on-page issues on a schedule.
What SpyFu is built to do
- Competitor keyword history
- Years of ranking and bidding history for a domain, not just the current position.
- Ad copy archive
- Every paid advert a competitor has run, which shows the messages they kept and dropped.
- Keyword gap analysis
- Terms competitors rank for and you do not, ranked by opportunity.
- Unlimited searches
- Plans are not metered per lookup, which suits exploratory research.
Choose Moz if
- Small teams doing SEO without a dedicated specialist.
Choose SpyFu if
- Marketers researching competitor paid and organic strategy.
Evidence and freshness
Where a claim on this page comes from a vendor page, it is linked here.
Moz: pros & cons
- Domain Authority is widely referenced
- Approachable interface for non-specialists
- Good learning material
- Link index smaller than Ahrefs or Semrush
- Rank tracking limits on lower plans
- Some data updates slowly
SpyFu: pros & cons
- Deep historical ad and keyword data
- Inexpensive relative to rivals
- Useful competitor ad history
- Data accuracy varies by market
- Interface feels dated
- Weaker outside the US
Our verdict on Moz
Fine as a first SEO tool. Serious link analysis needs a bigger index.
Our verdict on SpyFu
Good value for competitor research. Verify anything important against your own data.