computer science

Semrush

Semrush is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Semrush rather than just read about it. In short: Semrush Holdings, Inc. is an American software company and wholly owned subsidiary of Adobe Inc. The company's platform provides tools for search engine optimization (SEO), AI search visibility, competitor analysis, content marketing, paid advertising, local SEO, website auditing, reporting, and third-party integrations.

Key takeaways

Semrush belongs to computer science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Semrush to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Semrush from memory before moving on to harder problems.

Reference excerpt

Semrush Holdings, Inc. is an American software company and wholly owned subsidiary of Adobe Inc. The company's platform provides tools for search engine optimization (SEO), AI search visibility, competitor analysis, content marketing, paid advertising, local SEO, website auditing, reporting, and third-party integrations. It was released by Boston-based company Semrush Inc, founded by Oleg Shchegolev and Dmitri Melnikov. As of 2025, the company has over 1000 employees and offices in Barcelona, Belgrade, Berlin, Yerevan, Limassol, Prague, Warsaw, Amsterdam, Boston, and Dallas. It went public in March 2021 and formerly traded on the NYSE under the ticker NYSE: SEMR until Adobe completed its acquisition in April 2026.

History Semrush was initially released as Seodigger before becoming a Firefox extension. It was later renamed SeoQuake Company in 2007, before adopting the name Semrush (SEM being an acronym for search engine marketing). In April 2018, the company raised $40 million in a financing round co-led by venture capital firms Greycroft, E.ventures, and Siguler Guff, to support expansion across research platforms, including those associated with Amazon, Microsoft, and Baidu. In December 2020, the company updated its visual identity and standardized its name from "SEMrush" to "Semrush". Semrush completed an initial public offering in March 2021 and began trading on the New York Stock Exchange under the ticker symbol NYSE: SEMR. The company's S-1 filing reported $213 million in revenue and more than 82,000 customers. The company’s founders are Russian and relocated to the United States in 2017. Following Russia's invasion of Ukraine in 2022, Semrush ceased operations in Russia and offered relocation support to affected staff. In 2024, Semrush acquired the assets of Datos and later acquired Ryte, a German SaaS company. In March 2025, Bill R. Wagner became CEO, succeeding co-founder Oleg Shchegolev, who transitioned to Chief Technology Officer. In November 2025, Adobe Inc. announced an agreement to acquire Semrush for $1.9 billion. In February 2026, shareholders approved the proposed transaction at a virtual special meeting. Adobe completed the acquisition on April 28, 2026.

Acquisitions Acquisitions made by Semrush include:

2022 – Backlinko 2022 – Kompyte, an intelligence and sales platform 2023 – Traffic Think Tank, a SEO community 2024 – Third Door Media, the publisher of Search Engine Land 2024 – Brand24, a brand monitoring platform 2024 – Ryte, for SEO and user experience 2024 – Datos, for data analytics 2024 – Exploding Topics, a data-driven trend discovery platform

Products The platform provides tools for search engine optimization (SEO), AI search visibility, competitive analysis, content marketing, performance-based advertising, local SEO, website auditing, reporting, and system integration. The platform also includes AI search visibility tools that monitor how brands appear in AI-generated responses on large language model (LLM) platforms such as ChatGPT or Google Gemini. The keyword research tool provides various data points on each keyword. The platform also collects information about online keywords gathered from Google and Bing search engines.

Third Door Media Semrush acquired Third Door Media, the owner of publications Search Engine Land and MarTech, in October 2024. Search Engine Land is a news website that covers search engine marketing and search engine optimization. Search Engine Land stories are often cited by other mainstream media and industry publications. It was founded by Danny Sullivan and Chris Sherman in 2006.

References

Worked examples

Example 1 — a first encounter with Semrush

Start with the simplest possible case. Write down what Semrush claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Semrush before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Semrush ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Semrush

In research: Semrush appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Semrush in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Semrush is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2008 software, 2021 initial public offerings, Companies based in Boston, so understanding it makes those chapters shorter.
In everyday life: Look for Semrush outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Semrush in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Semrush means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Semrush out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Semrush in simple terms?

Why does Semrush matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Semrush?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Semrush.