E1 · Download and test
10 minClone inemaseo-sistemas and run the tests for the 5 tools.
Done when: the terminal shows OK five times, once per tool.
Lesson 1 · 14 min
What a "Semrush" does and where each piece of data comes from
An SEO suite pulls together, on one screen, data from very different sources: your own site, official Google and Bing dashboards, and data the company buys or scrapes. You get the first two for free. Knowing where each number comes from is what separates what you can build yourself from what only exists as a paid product.
Start the lesson
In this lesson you will
- 1The layers of an SEO suite and where each one comes from
- 2What your own site's data answers for free
- 3What only exists as paid: exact volume, competitors, full backlinks
- 4Download inemaseo-sistemas and check that everything runs
Goal: separate, function by function, what your site gives you for free from what only exists with paid data, and install the 5 open tools.
01The layers of a "Semrush"
From top to bottom: from data that is only yours to data that someone sells. Tap each layer.
Estimate from the 10/19/2026 research, not measured: the free core covers most of the day-to-day needs of someone who looks after their own site; it does not cover market intelligence on third parties.
The first four layers belong to your site and come free. The last one is market data: someone collected it and charges for it.
02Function by function: where the data comes from
The functions suites sell, and the open substitute for each one.
1. Keyword
Paid tools mix clickstream, SERP scraping, and the Keyword Planner. For free you get your site's real queries in Search Console, autocomplete, and Google Trends.
Trends is a relative index, not a count of searches. Exact volume does not exist for free.
Honest limit
Search Console shows only the searches your site has already appeared in, and it hides rare queries (the "anonymized" ones).
2. Position
Search Console gives your site's real average position for each query. Tracking competitors' positions requires scraping Google, which violates the terms and gets blocked.
For your own site, free is enough.
3. Audit
Crawler, canonical, hreflang, schema, broken links: it all comes from your HTML. This course's auditor does the essentials; Core Web Vitals live in PageSpeed and CrUX, free.
It doesn't run JavaScript on purpose: it shows what a bot that doesn't render sees.
4. AI and backlinks
AI citation: the official, free option is Bing AI Performance. Paid monitors run a list of questions through the AIs; that's a sample, not an official score.
Full backlinks, with anchor and URL, only in paid tools. The Common Crawl web graph gives a rough view, by domain and months behind.
2026 yardstick
A local model (Ollama) doesn't measure what ChatGPT, Gemini or Perplexity answer: it has neither their search nor their index.
03Download the 5 tools and check them
Just Python 3.10+ with the standard library. Nothing to install besides git.
Terminal · download
git clone https://github.com/inematds/inemaseo-sistemas && cd inemaseo-sistemas python3 --version
Terminal · run the tests (no network)
for t in ferramentas/*/; do [ -d $t/tests ] && python3 -m unittest discover -s $t/tests; done
My questions × source (template)
# What I want to know about my site — <yoursite.com> — <mm/dd/yyyy> | question | source | free? | tool / lesson | |---|---|---|---| | how many non-branded searches find me | Search Console | yes | gsc-historico (lesson 4) | | does Microsoft's AI cite my pages? | Bing AI Performance | yes | bing-ia (lesson 5) | | what is broken in the HTML | the site itself | yes | auditor (lesson 2) | | which AI bots read me | server log | yes | botlog (lesson 6) | | how many people search <term> per month | purchased data | no | lesson 8 |
Example from the repository
The tests for the 5 tools, in folder order (agente-ready, auditor, bing-ia, botlog, gsc-historico), no network:
Ran 10 tests in 0.004s OK Ran 17 tests in 0.004s OK Ran 11 tests in 0.260s OK Ran 14 tests in 0.060s OK Ran 10 tests in 0.439s OK
- auditor: what is broken in the HTML your server delivers.
- agente-ready: a 0–100 readiness score for AI, with public weights.
- gsc-historico: non-branded searches, week by week, forever.
- bing-ia: pages cited by Bing's AI × clicks on Google.
- botlog: AI bots in the log, by purpose, and the fake ones.
- Old Python: anything below 3.10 gives a syntax error. Check with
python3 --version. - Expecting search volume: none of the five gives market volume; they measure your site.
- Thinking you need a paid account: besides Search Console and Bing Webmaster (free), there are no accounts at all.
04Practice: your map
Keep the table: it becomes your tool plan in lesson 8.
E2 · Your questions
20 minFill in the "my questions × source" table with at least 5 questions you want to answer about your site (or a client's).
Done when: each question has its data source and is marked free or not; at least one is "no".
05Test what you learned
The explanation shows up after your answer.
Question 1 of 4
Which of these data does NOT exist for free with an exact number?skill
Correct
Exact volume comes from purchased or modeled data. Trends gives only relative interest, and Search Console only shows searches where you already appeared. The other three come from your own site or a free official dashboard.Not that one
Exact volume comes from purchased or modeled data. Trends gives only relative interest, and Search Console only shows searches where you already appeared. The other three come from your own site or a free official dashboard.Review: The layers of a "Semrush"Question 2 of 4
Why isn't Search Console alone enough to see how things evolve over years?
Correct
Data older than 16 months disappears. Exporting every week and saving it to a local database is the only way to have the history; that's what lesson 4 does.Not that one
Data older than 16 months disappears. Exporting every week and saving it to a local database is the only way to have the history; that's what lesson 4 does.Review: The layers of a "Semrush"Question 3 of 4
A paid AI monitor says your brand shows up in 30% of answers. What is that?
Correct
Answers vary and the question list belongs to the tool. Official and free, today, is only Bing AI Performance (citations) and the Search Console AI report (impressions).Not that one
Answers vary and the question list belongs to the tool. Official and free, today, is only Bing AI Performance (citations) and the Search Console AI report (impressions).Review: Function by function: where the data comes fromQuestion 4 of 4
Can you use a local model (Ollama) to measure whether ChatGPT cites your site?
Correct
A local model is good for classifying answers you've already collected or generating question variations. It doesn't know what ChatGPT answers today.Not that one
A local model is good for classifying answers you've already collected or generating question variations. It doesn't know what ChatGPT answers today.Review: Function by function: where the data comes fromQuiz complete
You got {a} of {n} right. Get them all right and the lesson is marked as complete.Pick an option. The explanation appears after you try.
06Takeaways
FreePerformance, official AI, auditing and bots: everything about your site, with the 5 tools.
PaidExact volume, difficulty, competitor and full backlinks: market data.
2026 yardstickA tool's share of voice is a sample; the official one is Bing AI Performance. Ollama doesn't measure the real AIs.