Official monthly prices, annual-equivalent pricing and core plan limits for mainstream SEO tools in one table. Every figure links back to the vendor's pricing page — cite it freely in articles and procurement comparisons.
Only figures published on official pricing pages are listed. Where an official price is not public, the tier is marked "quote only" — never estimated. Prices and limits change over time; always confirm on the official page before purchasing.
Filter by use case
Showing 6 tools and 21 plan tiers
Semrush
All-in-one SEO platformFree tier: Free account with limited quota, plus standalone free tools
5 websites, 500 keywords daily; plus 50 AI prompts daily and 1 AI brand domain
Small teams and agencies
Pro+ Annual billing saves about 17%
$299
$248.17
15 websites, 1,500 keywords tracked daily
Growing teams across multiple markets
Advanced Annual billing saves about 17%; custom plans available
$549
$455.67
40 websites, 5,000 keywords daily, API access
Organizations needing API and automation
The official plans now follow the Semrush One lineup (SEO / Starter / Pro+ / Advanced). Add-ons are billed separately: extra users from $45/mo, Lead Generation $90/mo, Base Report $10/mo, Pro Report $20/mo.
Ahrefs
All-in-one SEO platformFree tier: Ahrefs Free includes free web tools and Webmaster Tools
For large teams, with all advanced capabilities and unlimited users
Enterprise teams
Usage is metered in credits, and each tier carries a different credit allowance. Extra users are billed per tier ($40/mo Lite, $60/mo Standard, $80/mo Advanced, $100/mo Enterprise, each). Add-ons are separate: AI Content Helper and Report Builder from $99/mo each, Project Boost Pro $20/mo per project, Project Boost Max $200/mo per project.
Moz Pro
All-in-one SEO platformFree tier: No permanent free tier; trial available, plus standalone free tools
Standard Annual equivalent $79/mo, saving $238 in year one
$99
$79
1 user seat; tracked project limits follow the official comparison table
Small businesses needing SEO basics
Medium Annual equivalent $143/mo, saving $429 in year one
$179
$143
2 user seats, includes AI visibility dashboards and higher limits
Growing businesses running SEO plus AI search
Large Annual equivalent $239/mo, saving $720 in year one
$299
$239
3 user seats with full-scale data allowances
Larger businesses needing data at scale
A $49/mo entry plan for a single website is also listed. Annual billing saves about 20%; Moz quotes first-year savings of $238 (Standard), $429 (Medium) and $720 (Large). The enterprise tier requires talking to sales.
SE Ranking
All-in-one SEO platformFree tier: No free tier; 14-day free trial without a credit card
Annual billing saves about 20% and includes free migration. Key capabilities are unlocked as add-ons billed annually: Agency Pack +$69/mo, AI Search +$71.20/mo ($89 monthly), API +$45/mo. Limits can also be topped up: extra manager seats from $16, extra keywords from $22.40, extra content articles from $39.20, extra locations from $18.40.
Surfer
Content optimizationFree tier: No permanent free tier; trial available
Discovery Monthly equivalent under annual billing, saving about $120/yr
Quote only
$49
Establish a baseline presence in Google and AI search
Individuals starting content optimization
Standard Monthly equivalent under annual billing, saving about $240/yr
Quote only
$99
Align a team on one workflow and start growing AI visibility
Teams with a steady content pipeline
Pro Monthly equivalent under annual billing, saving about $444/yr
Quote only
$182
Technical conflict fixing and AI perception management at scale
Scaling content operations
Peace of Mind Monthly equivalent under annual billing, saving about $720/yr
Quote only
$299
Uncapped optimization, API access and priority support
High-frequency optimization and automation
Every price shown on the official pricing page is a monthly equivalent under annual billing, alongside the stated yearly saving; month-to-month pricing is not published on that page.
Similarweb
Traffic & market researchFree tier: Free trial plus standalone free tools such as the Website Traffic Checker
Starter Only monthly pricing is published; annual amount is not disclosed
$129
Quote only
1 user, 1,000 credits, 3 months of historical data
Individuals doing occasional traffic and competitor research
Business Annual only and quote-based on the official page
Quote only
Quote only
5 users, 15 months of history, subdomain analysis and full-depth SERP analysis
Companies needing team collaboration
Enterprise Annual only and quote-based on the official page
Quote only
Quote only
10 users, 37 months of history, unlimited keywords per table
Enterprise-scale data needs
The official Web Intelligence page states plans "from $125/mo" and lists the Starter tier at $129/mo; Business and Enterprise are annual-only and require contacting sales. A separate AI Search Intelligence line starts from $99/mo.
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FAQ
Why do these prices differ from what I see on the vendor site?
Three common reasons: the vendor is showing a regional or promotional price, you are viewing the annual toggle, or prices changed after the verified date. Every row carries a verified date — cite it together with the figures and re-check the linked official page before purchase decisions.
How is the annual-equivalent monthly price calculated?
We take the vendor's own annual-billing figure expressed per month, e.g. Semrush SEO bills annually at $117.33/mo (about 17% off). No extra math is applied on this page; when a vendor only publishes a lump sum, we use the per-month equivalent the vendor itself states.
Why are some Similarweb tiers missing prices?
Similarweb's official pricing page only publishes $129/mo for the Starter tier; Business and Enterprise are annual-only and quote-based. This page follows a strict rule: when the official number is not public, we write "quote only" instead of estimating.
Can I cite this page? How should I attribute it?
Yes — feel free to cite it in articles, reports or videos. Suggested attribution: "Source: RelayX SEO Tool Pricing Index (relayx.net/seo-tools-pricing), verified 2026-09-12." Keeping the verified date tells your readers how fresh the data is.
What is RelayX's relationship with these tools?
RelayX is an independent platform with no official partnership with the vendors listed, and this page is not an ad: figures come straight from each vendor's official pricing page to provide a verifiable public reference. To use some of these tools at lower cost, check live shared-access plans and limits on RelayX's tool pages.
Data sources and update policy
Verification method: open each vendor's official pricing page and transcribe the published monthly price, annual-equivalent price and quota wording — no third-party estimates. Source links sit at the top-right of each table.
Update cadence: verified monthly with the date refreshed at the top of this page; price changes are re-checked as soon as we learn of them. Report stale figures via the site's support entry.
Attribution: when citing, keep the source and this page's verified date; the CSV's verified_at column matches the page.
Disclaimer: RelayX has no affiliation or official partnership with the vendors listed; trademarks belong to their respective owners. Pricing is provided for public reference and is not purchasing advice.
