Should you build your own Semrush?
SEO, PPC, content, competitive research, and AI visibility toolkit
You can build small audits and rank trackers, but Semrush's moat is massive keyword, competitor, backlink, PPC, and SERP datasets plus integrations and reports.
ENOriginal research content in English. Original prompt preserved in English.
Build me a rank-and-health tracker for sites I own, covering the
self-collectable slice of Semrush. Requirements:
- A Node CLI on a nightly cron: better-sqlite3 for history, and a static HTML
report regenerated each run.
- Track 20-50 chosen keywords through a SERP API (Serper or DataForSEO, key in
.env); store position per keyword per day and draw movement sparklines in the
report.
- Pull clicks, impressions, and average position per query from the Google
Search Console API for my own properties (OAuth creds in .env).
- A technical crawl of my own site with crawlee: broken links, missing titles
and descriptions, redirect chains, slow pages, as a table in the report.
- Email the report weekly via Resend (key in .env), but only when something
moved: a position swing over 3 places or new 404s.
- No accounts, no telemetry; all history lives in one SQLite file.
- Out of scope: competitor keyword gaps, backlink databases, and traffic
estimates for sites I do not own. Do not scrape or estimate third-party data.
- README: the cheapest SERP API tier for daily checks, the GSC OAuth steps, and
a note that Semrush's moat is years of crawled keyword, backlink, and SERP
data no solo build can collect; this tracks only what I own.The prompt opens pre-filled in your agent. Review it before running. · this prompt is generated from the build plan · improve it via PR
What would building your own look like?
Crawl a site, track selected keywords with an API, collect Google Search Console data, and generate reports.
What you will need
- crawler
- search APIs
- GSC/GA integrations
- database
- rank tracking infrastructure
- reporting UI
They pay for market data and competitive intelligence that a solo builder cannot cheaply recreate.
xkeyword database
xcompetitor intelligence
xbacklink/PPC data
xAI visibility data
xreports
xintegrations
xdata freshness
How much does Semrush cost?
- Monthly billing
- $139/mo$139/mo
- Per year
- $1,668/yr$1,668/yr
- Annual billing
- $1,408/yr16% cheaper than paying monthly
- On a Brazilian card, with 3.5% IOF
- R$726/moR$7,358/yr
Saved to My list. You will see a notice on this site when the price changes.
You complete the purchase on Semrush’s site. Vibe Radar does not handle payments.
| Plan | Monthly | Annual (per month) | What is included |
|---|---|---|---|
| seo | $139/workspace≈ $139 | $117.33/workspace≈ $117 | 5 projects/sites; 500 tracked keywords. |
| starter | $199/workspace≈ $199 | $165.17/workspace≈ $165 | 5 projects/sites; 500 tracked keywords; 50 daily AI prompts; 1 AI brand domain; 300 AI-visibility reports/day. |
| pro+ | $299/workspace≈ $299 | $248.17/workspace≈ $248 | 15 projects/sites; 1,500 tracked keywords; 100 daily AI prompts. |
| advanced | $549/workspace≈ $549 | $455.67/workspace≈ $456 | 40 projects/sites; 5,000 tracked keywords; 200 daily AI prompts; API access. |
| enterprise | custom | - | Custom projects, keyword volume, AI prompts, users, data access, API capacity, and support. |
Free tier10 requests/day with 10 results/report; 1 Site Audit project up to 100 pages/month; 1 Base PDF report; no historical data
Billing termsmonthly + annual (annual saves up to 17%)
Additional costsExtra users start at $45/month; Lead Generation is $90/month; Base Reports are $10 each and Pro Reports $20 each. Standalone AI Visibility starts at $99/domain/month on annual billing, with extra domains, prompts, and seats charged separately.
verified 2026-10-20 · source ↗
Is it cheaper to build or buy Semrush?
Adjust the numbers: hours to build, your hourly rate, running costs and the subscription price.
Over 24 months, subscribing is cheaper.
Starting hours estimated from the analysis (not realistically solo). Does not price what you give up (support, integrations, security).
Can I rebuild Semrush?
Not really. Semrush’s value is not the code: the moat survives one prompt. See the honest breakdown above.
How much does Semrush cost?
Semrush costs about $139/mo (SEO, checked 10/20/2026), which is $1,408 per year.
What do I lose by replacing Semrush?
Honestly: keyword database; competitor intelligence; backlink/PPC data; AI visibility data; reports; integrations; data freshness. If any of those are load-bearing for you, keep paying.
Is there an open-source alternative to Semrush?
Yes: SEO Macroscope (Open-source technical SEO crawler; useful only for a narrow slice of Semrush.). Using prior art is also vibecoding; the prompt is for when you want it exactly your way.