Verified July 2026

3 Best Semrush Alternatives in 2026

Semrush is the all-in-one SEO and digital-marketing platform (an Adobe company since April 2026), sold as per-seat subscriptions with paid add-ons. Here is the shortlist worth your time, compared on verified pricing, coverage, and the catch each vendor’s own page will not tell you.

The best Semrush alternative depends on the job. Ahrefs is the closest suite swap and the usual head-to-head pick for SEO teams. Similarweb goes deeper on traffic and market intelligence. And for SEO data inside your own product, scripts, or sheets, 1Lookup returns keyword, backlink, and authority data as flat-priced API lookups with no subscription.

Disclosure: this site is built by 1Lookup. It appears on this list where it genuinely fits, and we say plainly when a competitor is the better choice.

Source: semrush.com homepage, captured July 2026

Why teams look beyond Semrush

No contact-data products: Semrush sells SEO and market analytics, not email addresses, phone numbers, or IP intelligence
API access is gated to the top tier of either lineup: the live pricing page lists 'API data integration' only on the $549/mo Advanced plan, and the parallel SEO Toolkit lineup grants 'API access' only on its Business tier, whose price is not publicly listed - and upgrading alone grants zero units, since API unit packages (2M/5M/10M/20M units) must be bought on top
API unit package dollar prices are not publicly listed; they are only shown in-account at checkout, so per-lookup cost cannot be computed from public pages
Unused API units expire at each subscription renewal instead of rolling over, and historical data costs 5x live data (50 vs 10 units per line for keyword reports)
Subscription-only, per-seat pricing: there is no pay-as-you-go per-lookup option, and additional users cost extra (pricing page: from $45/mo; Semrush's own blog: $45-$100/user depending on plan)

These are factual scope and pricing characteristics, not knocks; Semrush remains the right tool for the buyers described in the verdict section below.

The shortlist, in order

1. 1LookupOur product

Best pay-per-lookup SEO data: keywords, backlinks, and authority by API

Pick 1Lookup when you need keyword metrics, backlink summaries, or domain scores programmatically and want per-lookup pricing on shared credits instead of a per-seat suite whose API sits on the top tier.

Starting price: $99/mo for 20,000 credits ($4.95 per 1,000, down to $2.00 on Enterprise)
Free option: Free single lookups via the online tools at 1lookup.io/tools, no account required
The catch: Younger brand with a smaller public review footprint than long-established incumbents

See 1Lookup pricing 7-day free trial

2. Ahrefs

Best like-for-like suite swap, built around the reference link index

Pick Ahrefs when your daily work is organic search and backlinks and you want the industry-benchmark link data with a leaner, SEO-first toolset.

Starting price: $29/mo Starter plan (limited: 200 in-app credits/mo, 1 unverified project, 50 tracked keywords, 1 month historical data, no exports, no API-unit allowance, and additional users or credits cannot be purchased on it); the cheapest plan with API v3 access is Lite at $129/mo, which includes 100,000 API units/mo and the full core toolset
Free option: Ahrefs Free (Webmaster Tools): free Site Explorer + Site Audit for websites you verify ownership of (1,000 backlinks & keywords visible at once; 5,000 crawl credits/mo per verified project; all 170+ audit issues), Web Analytics up to 1M events/project/mo, Social Media Manager (unlimited while in beta), AI Content Helper (1 document/mo), SEO Toolbar (DR & UR metrics only). Also a free public Domain Rating API endpoint (subject to terms of use) and Firehose, a free real-time web-mentions API; the API's free test queries require a paid plan, not a free account
The catch: No per-lookup or standalone API pricing: API v3 access requires at least the $129/mo Lite suite subscription, so light programmatic users pay for a full SEO toolset they may not use

1Lookup vs Ahrefs: full comparison

3. Similarweb

Best for traffic and market intelligence beyond SEO

Pick Similarweb when your questions are about markets, audiences, and competitors' overall digital footprint rather than rankings, and panel-based estimates matter more than crawl data.

Starting price: $125/mo billed annually (or $199 month-to-month) for the Web Intelligence "Competitive Intelligence" plan: 1 user, 3 months of historical data, worldwide view only. Sales Intelligence "Individual" is $99/mo billed annually ($129 monthly, "1 user (1,000 credits)"); the standalone AI Search Intelligence (AEO) plan is also $99/mo billed annually ($129 monthly, 1 user, 150 tracked prompts).
Free option: Free similarweb.com account with high-level website/app lookups - the packages-page FAQ calls the free data "a very high-level taste" of the platform, with no numeric limits published on current pricing pages. Separately, a free DigitalRank API tier gives 100 data credits/month for global website-rank lookups (per Similarweb's own knowledge-center article; that article blocks direct fetches, see notes).
The catch: All self-serve plans are single-user (1 seat); any multi-user setup requires a custom-priced Business/Enterprise package via sales

1Lookup vs Similarweb: full comparison

All 3 compared on the same criteria

Product	Starting price	Free option
1Lookup	$99/mo for 20,000 credits ($4.95 per 1,000, down to $2.00 on Enterprise)	Free single lookups via the online tools at 1lookup.io/tools, no account required
Ahrefs	$29/mo Starter plan (limited: 200 in-app credits/mo, 1 unverified project, 50 tracked keywords, 1 month historical data, no exports, no API-unit allowance, and additional users or credits cannot be purchased on it); the cheapest plan with API v3 access is Lite at $129/mo, which includes 100,000 API units/mo and the full core toolset	Ahrefs Free (Webmaster Tools): free Site Explorer + Site Audit for websites you verify ownership of (1,000 backlinks & keywords visible at once; 5,000 crawl credits/mo per verified project; all 170+ audit issues), Web Analytics up to 1M events/project/mo, Social Media Manager (unlimited while in beta), AI Content Helper (1 document/mo), SEO Toolbar (DR & UR metrics only). Also a free public Domain Rating API endpoint (subject to terms of use) and Firehose, a free real-time web-mentions API; the API's free test queries require a paid plan, not a free account
Similarweb	$125/mo billed annually (or $199 month-to-month) for the Web Intelligence "Competitive Intelligence" plan: 1 user, 3 months of historical data, worldwide view only. Sales Intelligence "Individual" is $99/mo billed annually ($129 monthly, "1 user (1,000 credits)"); the standalone AI Search Intelligence (AEO) plan is also $99/mo billed annually ($129 monthly, 1 user, 150 tracked prompts).	Free similarweb.com account with high-level website/app lookups - the packages-page FAQ calls the free data "a very high-level taste" of the platform, with no numeric limits published on current pricing pages. Separately, a free DigitalRank API tier gives 100 data credits/month for global website-rank lookups (per Similarweb's own knowledge-center article; that article blocks direct fetches, see notes).

Prices verified from each vendor’s public pricing page as of July 2026. Pricing models differ (subscriptions, pay-as-you-go credits, per-lookup metering), so compare at your real monthly volume; the full per-vendor volume tables are on each linked comparison page.

Who should choose what

1Lookup: Best pay-per-lookup SEO data: keywords, backlinks, and authority by API.
Ahrefs: Best like-for-like suite swap, built around the reference link index.
Similarweb: Best for traffic and market intelligence beyond SEO.

Migration effort

Suite-to-suite moves mean re-creating projects, position-tracking campaigns, and audit schedules on the other side; keyword lists export and import as CSV. Historical dashboards do not transfer, so screenshot or export any trend data you need before a subscription lapses. API-based replacements skip all of that: you integrate the endpoints you need and retire the seats.

Semrush alternatives FAQ

What is the best Semrush alternative?

For SEO-first teams, Ahrefs is the closest replacement and the usual head-to-head. For market and audience intelligence, Similarweb. For programmatic access to keyword volumes, backlink summaries, or authority metrics, a per-lookup API such as 1Lookup avoids the per-seat suite entirely.

Is there a cheaper way to get Semrush-style data by API?

Semrush gates API access to its top public tier and sells API units separately, with unit-package prices shown only in-account and unused units expiring at renewal. If you need SEO data points rather than the platform, per-lookup pricing is simpler to budget; the table above shows the verified entry prices side by side.

Do the alternatives cover AI-search visibility?

Semrush's current lineup leans hard into AI visibility tracking, and Ahrefs ships its own Brand Radar for the same job. If AI-answer visibility is your main use case, compare those two suites directly; the API route covers classic keyword, backlink, and authority data rather than AI-answer monitoring.

When is Semrush itself the right choice?

When marketing lives in it daily: agencies and in-house teams using rank tracking, audits, content optimization, and advertising research together, with the free tier making it easy to confirm fit first. The alternatives here win on buying shape for narrower needs, not by out-platforming Semrush.

Test the all-in-one option first

1Lookup’s 7-day free trial includes $20 of credits across phone, email, and IP validation. Run your own numbers before you decide.

Start your free trial 1Lookup vs Semrush in depth