--- title: "Challenges brands: Which are searched most?" description: "Compare the challenges brands people buy. Share of Search among HackerRank, React, CodeSignal and Codility, the challenges brands Brandwave compares worldwide, using the same methodology, market, and reporting period. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time." canonical: "https://gobrandwave.com/demand/global-en/categories/challenges-brands" publisher: "Brandwave" --- # Challenges brands: Which are searched most? Compare the challenges brands people buy. Share of Search among HackerRank, React, CodeSignal and Codility, the challenges brands Brandwave compares worldwide, using the same methodology, market, and reporting period. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time. ## Key facts - **Competitive set**: Challenges brands - **Market**: Global - **Brands compared**: 4 - **Month measured**: Sep 2026 - **Highest Share of Search**: HackerRank, 83.9% ## Which brand is most popular in search among challenges brands worldwide? - In September 2026, HackerRank was the most searched among challenges brands worldwide, with an estimated 823K branded searches and 83.9% estimated Share of Search within this set. - React is in 2nd place, 72.7 percentage points behind at 11.2% Share of Search. - Across the 12 months ending September 2026, HackerRank’s estimated Share of Search among challenges brands worldwide increased from 75.1% to 83.9%. - Across the 12 months ending September 2026, React’s estimated Share of Search among challenges brands worldwide decreased from 18.3% to 11.2%. - Across the 12 months ending September 2026, CodeSignal’s estimated Share of Search among challenges brands worldwide decreased from 4.5% to 3.4%. - Across the 12 months ending September 2026, Codility’s estimated Share of Search among challenges brands worldwide decreased from 2% to 1.5%. - Across the 12 months ending September 2026, HackerRank’s estimated Share of Search among challenges brands worldwide peaked at 84.4% in July 2026 and was lowest at 71.1% in May 2026. - Across the 12 months ending September 2026, React’s estimated Share of Search among challenges brands worldwide peaked at 21.3% in May 2026 and was lowest at 11.2% in August 2026. - Across the 12 months ending September 2026, CodeSignal’s estimated Share of Search among challenges brands worldwide peaked at 5.2% in May 2026 and was lowest at 2.8% in July 2026. ## Compare search popularity between leading brands - [HackerRank vs React: compare search popularity](/demand/global-en/compare/hackerrank-vs-react): 83.9% against 11.2% Share of Search. - [HackerRank vs CodeSignal: compare search popularity](/demand/global-en/compare/codesignal-vs-hackerrank): 83.9% against 3.4% Share of Search. - [React vs CodeSignal: compare search popularity](/demand/global-en/compare/codesignal-vs-react): 11.2% against 3.4% Share of Search. ## How did search popularity change for challenges brands worldwide in September 2026? - Estimated monthly branded searches for React worldwide fell 45.3% over 12 measured months, from 201K to 110K in September 2026. - Estimated monthly branded searches for Codility worldwide fell 33.3% over 12 measured months, from 22.2K to 14.8K in September 2026. - Estimated monthly branded searches for CodeSignal worldwide fell 33.1% over 12 measured months, from 49.5K to 33.1K in September 2026. ## Share of Search ranking | Rank | Brand | Share of Search | Estimated monthly branded searches | Change vs prior month | Owned by | | --- | --- | --- | --- | --- | --- | | 1 | HackerRank | 83.9% | 823K | 0.0% | HackerRank | | 2 | React | 11.2% | 110K | 0.0% | React | | 3 | CodeSignal | 3.4% | 33.1K | 0.0% | CodeSignal | | 4 | Codility | 1.5% | 14.8K | 0.0% | Codility | ## Historical estimated branded-search demand | Month | Brand | Estimated monthly branded searches | Share of Search | Rank | | --- | --- | --- | --- | --- | | Oct 2025 | HackerRank | 823K | 75.1% | 1 | | Oct 2025 | React | 201K | 18.3% | 2 | | Oct 2025 | CodeSignal | 49.5K | 4.5% | 3 | | Oct 2025 | Codility | 22.2K | 2% | 4 | | Nov 2025 | HackerRank | 673K | 74.7% | 1 | | Nov 2025 | React | 165K | 18.3% | 2 | | Nov 2025 | CodeSignal | 40.5K | 4.5% | 3 | | Nov 2025 | Codility | 22.2K | 2.5% | 4 | | Dec 2025 | HackerRank | 673K | 75.1% | 1 | | Dec 2025 | React | 165K | 18.4% | 2 | | Dec 2025 | CodeSignal | 40.5K | 4.5% | 3 | | Dec 2025 | Codility | 18.1K | 2% | 4 | | Jan 2026 | HackerRank | 673K | 74.7% | 1 | | Jan 2026 | React | 165K | 18.3% | 2 | | Jan 2026 | CodeSignal | 40.5K | 4.5% | 3 | | Jan 2026 | Codility | 22.2K | 2.5% | 4 | | Feb 2026 | HackerRank | 673K | 75.1% | 1 | | Feb 2026 | React | 165K | 18.4% | 2 | | Feb 2026 | CodeSignal | 40.5K | 4.5% | 3 | | Feb 2026 | Codility | 18.1K | 2% | 4 | | Mar 2026 | HackerRank | 673K | 74.7% | 1 | | Mar 2026 | React | 165K | 18.3% | 2 | | Mar 2026 | CodeSignal | 40.5K | 4.5% | 3 | | Mar 2026 | Codility | 22.2K | 2.5% | 4 | | Apr 2026 | HackerRank | 673K | 78.3% | 1 | | Apr 2026 | React | 135K | 15.7% | 2 | | Apr 2026 | CodeSignal | 33.1K | 3.9% | 3 | | Apr 2026 | Codility | 18.1K | 2.1% | 4 | | May 2026 | HackerRank | 450K | 71.1% | 1 | | May 2026 | React | 135K | 21.3% | 2 | | May 2026 | CodeSignal | 33.1K | 5.2% | 3 | | May 2026 | Codility | 14.8K | 2.3% | 4 | | Jun 2026 | HackerRank | 550K | 78.4% | 1 | | Jun 2026 | React | 110K | 15.7% | 2 | | Jun 2026 | CodeSignal | 27.1K | 3.9% | 3 | | Jun 2026 | Codility | 14.8K | 2.1% | 4 | | Jul 2026 | HackerRank | 823K | 84.4% | 1 | | Jul 2026 | React | 110K | 11.3% | 2 | | Jul 2026 | CodeSignal | 27.1K | 2.8% | 3 | | Jul 2026 | Codility | 14.8K | 1.5% | 4 | | Aug 2026 | HackerRank | 823K | 83.9% | 1 | | Aug 2026 | React | 110K | 11.2% | 2 | | Aug 2026 | CodeSignal | 33.1K | 3.4% | 3 | | Aug 2026 | Codility | 14.8K | 1.5% | 4 | | Sep 2026 | HackerRank | 823K | 83.9% | 1 | | Sep 2026 | React | 110K | 11.2% | 2 | | Sep 2026 | CodeSignal | 33.1K | 3.4% | 3 | | Sep 2026 | Codility | 14.8K | 1.5% | 4 | ## What is being compared - **CodeSignal**: Measured on the search term “codesignal”. - **Codility**: Measured on the search term “codility”. - **HackerRank**: Measured on the search term “hackerrank”. - **React**: Measured on the search term “react js”. - [CodeSignal](/demand/global-en/brands/codesignal) - [Codility](/demand/global-en/brands/codility) - [HackerRank](/demand/global-en/brands/hackerrank) - [React](/demand/global-en/brands/react) ## Methodology - [How is branded search demand measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Which brand is most popular in search among challenges brands worldwide? In September 2026, HackerRank was the most searched among challenges brands worldwide, with an estimated 823K branded searches and 83.9% estimated Share of Search within this set. These are worldwide searches for English-language branded terms. ## Cite this page Brandwave. "Challenges brands: Which are searched most?". https://gobrandwave.com/demand/global-en/categories/challenges-brands This page is also available as HTML at https://gobrandwave.com/demand/global-en/categories/challenges-brands. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.