Ahrefs vs Semrush
Sabari Rohith
Last updated on
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The short answer
Ahrefs and Semrush are both mature all-in-one SEO suites that cover keyword research, backlink analysis, rank tracking, and site audits. The honest split is scope: Ahrefs is the tighter, SEO-and-backlink-focused toolset with strong data depth and a cleaner surface area, historically the category benchmark for backlink data. Semrush is the broader all-in-one marketing suite spanning SEO, PPC, content, social, and AI visibility, with dedicated paid-search competitive research and the largest reported mainstream keyword database. One keeps a sharp SEO focus; the other does far more across channels, with a real cost that depends heavily on add-ons.
If your core need is backlink analysis, competitor link research, and link prospecting, you value data accuracy and crawl freshness over adjacent marketing modules, and you want a cleaner SEO-focused tool without PPC/social/PR sprawl, Ahrefs is the sharper pick (Lite is the realistic professional entry at ~$108/mo annual; budget for Standard at ~$208/mo to unlock Content Explorer).
If you run SEO and PPC together, need dedicated advertising competitive research, want one platform spanning content, social, and AI visibility, or need the largest reported keyword database, Semrush’s broader suite justifies its higher floor of $117.33/mo (annual Pro). Budget for Guru ($208.33/mo) and add-ons, since real cost climbs with modules and seats.
At a glance
| Ahrefs | Semrush | |
|---|---|---|
| Founded / Vendor | Ahrefs Pte. Ltd. (ahrefs.com), founded 2010 | Semrush Holdings (semrush.com), founded 2008 |
| Category | SEO toolset (backlink-first, SEO-focused) | All-in-one marketing suite (SEO + PPC + content + social + AI) |
| Starting price | ~$108/mo (Lite, annual); $29/mo Starter to test | ~$117.33/mo (Pro, annual) |
| Public rating | 4.5/5 G2 (667 reviews); 4.7/5 Capterra (578) | 4.5/5 G2 (3,434 reviews); 4.6/5 Capterra (2,292) |
| Best for | Backlink/SEO depth, agencies valuing data accuracy | Integrated SEO + PPC, cross-channel breadth |
Vendor profile
Ahrefs
Ahrefs was founded in 2010 by Dmytro Gerasymenko and is operated by Ahrefs Pte. Ltd., headquartered in Singapore. The company is privately held and bootstrapped, with no outside venture capital. Ahrefs began as a backlink-first toolset and is still the most commonly cited tool for backlink data depth and crawl freshness, with a reported index of around 35 trillion external backlinks refreshed roughly every 15 minutes (treat absolute index numbers as vendor-sourced). Ahrefs Pro-grade plans cover keyword research, rank tracking, site audits, and content research, plus Brand Radar for AI-visibility tracking. It is not a dedicated PPC management suite.
- Vendor
- Ahrefs Pte. Ltd. (ahrefs.com)
- Founded
- 2010 (Dmytro Gerasymenko)
- HQ
- Singapore
- Platform
- Web app (SaaS); privately held, bootstrapped
- Pricing model
- Tiered annual or monthly; per-seat add-ons ($40 to $80/mo)
- Starting price
- ~$108/mo (Lite, annual); $29/mo Starter to test
- Public rating
- 4.5/5 G2 (667 reviews); 4.7/5 Capterra (578 reviews)
Semrush
Semrush was founded in 2008 and is operated by Semrush Holdings, headquartered in Boston, Massachusetts, and publicly traded on the NYSE (ticker: SEMR). It has grown into a broad all-in-one online-visibility platform covering SEO, PPC, content, social, PR, and AI. Its keyword database is among the largest in the mainstream market (reported at 27 to 29 billion keywords; treat as vendor-sourced). Semrush covers the SEO core plus dedicated PPC and advertising competitive research, a Content Marketing toolkit, social and local modules, and AI visibility, most of which are gated to higher tiers or sold as add-ons. Vendor HQ, ticker, and founding year are carried from widely cited industry data; verify live before relying on any load-bearing claim.
- Vendor
- Semrush Holdings (semrush.com)
- Founded
- 2008
- HQ
- Boston, Massachusetts, USA
- Platform
- Web app (SaaS); publicly traded NYSE: SEMR
- Pricing model
- Tiered annual or monthly; modular add-ons (Advertising, AI Visibility, Local, Social, Content)
- Starting price
- ~$117.33/mo (Pro, billed yearly)
- Public rating
- 4.5/5 G2 (3,434 reviews); 4.6/5 Capterra (2,292 reviews)
Pricing: what you'll actually pay
Pricing is cross-verified from third-party sources (clarorank.com, demandsage.com) as of July 2026, because both vendors’ own pricing pages were not fully extractable to automated fetches. Treat figures as reported and confirm at ahrefs.com/pricing and semrush.com/pricing before purchase. Ahrefs has a lower headline entry via Starter, but Lite is the realistic professional floor; Semrush’s headline price understates real cost once add-ons and seats stack up.
| Ahrefs | Semrush | |
|---|---|---|
| Starting price (annual) | ~$108/mo (Lite); $29/mo Starter (monthly only, to test) | ~$117.33/mo (Pro) |
| Starting price (monthly) | $29/mo (Starter); $129/mo (Lite) | $139.95/mo (Pro) |
| Typical operating range | $108 to $374/mo (Lite to Advanced, annual) | $208.33 to $416.66/mo (Guru to Business, annual) |
| Full-capability tier | Advanced, ~$374/mo annual, $449/mo monthly (Enterprise $1,499+/mo) | Business, $416.66/mo annual, $499.95/mo monthly |
| Content tools included | Content Explorer from Standard (~$208/mo annual) | Content Marketing toolkit from Guru ($208.33/mo) or add-on |
| Historical data | 6 months (Lite) to 5 years (Advanced) | Guru tier and above only |
| Free plan | AWT (free, limited, owned sites) | Yes (limited, verify live) |
| Free trial | No (Starter $29 to test) | 7 days (commonly Pro/Guru, verify live) |
| Pricing model | Tiered; extra seats $40 to $80/mo; credit-metered on lower tiers | Tiered; extra seats ~$80/mo; add-ons $20 to $289/mo each |
Capability comparison
Both platforms cover the SEO core: keyword research, backlink analysis, rank tracking, and site auditing. The gaps appear on PPC and advertising research, breadth of adjacent modules, how AI visibility is delivered, and where each tool gates its features. Ahrefs wins on backlink focus and data depth; Semrush wins on breadth, PPC research, and reported database size.
| Service | Ahrefs | Semrush |
|---|---|---|
| Backlink analysis | ✓ (historically the category benchmark; ~35T backlinks reported, ~15-min refresh) | ✓ (Backlink Analytics + Audit; generally cited a step behind Ahrefs) |
| Keyword research | ✓ (large multi-engine database) | ✓ (27 to 29B keywords reported) |
| Rank tracking | ✓ (limits scale by tier: 750 to 10,000+) | ✓ (Position Tracking, daily; multi-location on Guru+) |
| Technical site audit | ✓ (Site Audit; free limited via AWT) | ✓ (130+ technical checks) |
| Content research / marketing tools | Partial (Content Explorer, Standard tier and above) | Partial (Content Marketing toolkit, Guru tier or add-on) |
| PPC / advertising research | Partial (paid keyword/ad data in Site Explorer; not a PPC suite) | ✓ (dedicated Advertising toolkit, core differentiator) |
| AI visibility tracking | ✓ (Brand Radar built in; 6 AI platforms; free checker) | Partial (AI Visibility toolkit add-on ~$99/mo) |
| Social media tools | ✕ | Partial (Social Media toolkit add-on ~$20/mo) |
| Local SEO | ✕ | Partial (Local SEO add-on ~$30/mo) |
| Historical data | 6 months (Lite) to 5 years (Advanced) | Guru tier and above only |
| API access | ✓ (API v3; expanded through 2026) | Partial (Business tier only) |
| Looker Studio integration | ✓ (Advanced tier; Brand Radar connector) | ✓ |
| Free plan | Partial (AWT: free, limited, owned sites) | Partial (limited free account, verify live) |
| Free trial | ✕ (Starter $29 as lowest-risk test) | 7 days (commonly on Pro/Guru, verify live) |
Decision matrix - who fits which side
| Criterion | Ahrefs | Semrush |
|---|---|---|
| Backlink data depth and crawl freshness | ✓ | ~ |
| Cleaner, SEO-focused surface area | ✓ | ✕ |
| Built-in AI visibility tracking (no add-on) | ✓ | ✕ |
| Dedicated PPC / advertising research | ✕ | ✓ |
| Largest reported keyword database | ✕ | ✓ |
| One platform for SEO + content + social + local | ✕ | ✓ |
| Daily rank tracking across tiers | ~ | ✓ |
| Free limited tier for owned sites | ✓ | ~ |
| Lower headline entry to test | ✓ | ~ |
| Deepest verified G2 review pool | ✕ | ✓ |
Check = clear edge. Tilde = capable but not the stronger pick. Cross = outside the model.
Strengths & tradeoffs
Both platforms cover the SEO core competently. The real differences are scope, backlink depth, how each tool delivers PPC and AI visibility, and where costs stack, and each side wins rows the other does not.
| Axis | Ahrefs | Semrush |
|---|---|---|
| Backlink data | Historically the category benchmark; ~35T backlinks reported, ~15-min refresh | Backlink Analytics + Audit; strong but generally cited a step behind Ahrefs |
| Keyword database | Large multi-engine database | 27 to 29B keywords reported (vendor-sourced) |
| PPC / advertising research | Paid data inside Site Explorer; not a dedicated PPC suite | Dedicated Advertising toolkit, core differentiator |
| Suite breadth | SEO-focused; cleaner surface area | All-in-one across SEO, PPC, content, social, PR, AI |
| AI visibility | Brand Radar built in (6 AI platforms) plus free checker | AI Visibility toolkit add-on (~$99/mo) |
| Content tools | Content Explorer from Standard tier | Content Marketing toolkit from Guru or add-on |
| Entry price | ~$108/mo annual (Lite); $29/mo Starter to test | ~$117.33/mo annual (Pro) |
| Cost creep | Credit limits on lower tiers; seats $40 to $80/mo | Add-ons ($20 to $289/mo each) and seats inflate real cost fast |
| Historical data | 6 months (Lite) to 5 years (Advanced) | Guru tier and above only |
| Public proof | 4.5 G2 (667); 4.7 Capterra (578) | 4.5 G2 (3,434); 4.6 Capterra (2,292) |
| Vendor stability | Private, bootstrapped, no outside VC | Publicly traded NYSE: SEMR |
Ratings & track record
| Metric | Ahrefs | Semrush |
|---|---|---|
| G2 rating | 4.5 / 5 | 4.5 / 5 |
| G2 reviews | 667 | 3,434 |
| Capterra rating | 4.7 / 5 (578 reviews) | 4.6 / 5 (2,292 reviews) |
| Founded | 2010 | 2008 |
| Publicly traded | No (private, bootstrapped) | Yes, NYSE: SEMR |
| Notable signal | Category benchmark for backlink data; built-in Brand Radar | Broadest all-in-one suite; dedicated PPC research |
The two tools tie on G2 rating at 4.5/5, but Semrush’s score rests on a far larger review pool (3,434 vs 667), giving it more statistical depth, while Ahrefs edges ahead on Capterra at 4.7/5 (578 reviews) versus 4.6/5 (2,292 reviews). G2 ratings were cross-verified via search-result metadata because G2 pages return 403 to automated fetches, so confirm counts are current before relying on them. Backlink and keyword index sizes are vendor- or aggregator-sourced marketing figures, presented as directional rather than audited. The honest read is that both are strong platforms, and the choice tracks whether you need backlink and SEO depth or cross-channel breadth, not which tool is “better.”
Both tools’ data is sourced from publicly available information and third-party cross-checks as of July 2026. Both vendors’ own pricing pages were not fully extractable to automated fetches; treat all pricing figures as reported and confirm at ahrefs.com/pricing and semrush.com/pricing before purchase. G2 ratings were cross-verified via search-result metadata; confirm counts live. This comparison is independent; we take no affiliate or referral fees from either vendor.
Frequently asked questions
What is the difference between Ahrefs and Semrush?
Is Ahrefs better than Semrush?
Which is cheaper, Ahrefs or Semrush?
Does Ahrefs include PPC or advertising research?
How do Ahrefs and Semrush handle AI visibility tracking?
Do Ahrefs and Semrush offer a free plan or trial?
Sources and references
- Ahrefs homepage (accessed July 2026)
- Ahrefs pricing (third-party cross-check, clarorank.com) (accessed July 2026)
- Ahrefs pricing cross-check (thatmarketingbuddy.com) (accessed July 2026)
- Ahrefs Brand Radar (AI visibility) (accessed July 2026)
- G2: Ahrefs reviews (4.5, 667 reviews) (accessed July 2026)
- Capterra: Ahrefs reviews (4.7, 578 reviews) (accessed July 2026)
- Ahrefs vs Semrush feature comparison (userp.io) (accessed July 2026)
- Semrush homepage (accessed July 2026)
- Semrush pricing (third-party cross-check, demandsage.com) (accessed July 2026)
- Semrush pricing cross-check (marketerschoice.com) (accessed July 2026)
- G2: Semrush reviews (4.5, 3,434 reviews) (accessed July 2026)
- Capterra: Semrush reviews (4.6, 2,292 reviews) (accessed July 2026)
Want an outside opinion before you commit?
This comparison is independent — we don't take referral fees from either agency. If you'd like a second read from a B2B SaaS specialist on which fits your stage, PipeRocket is happy to give you an honest one. No obligation.
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