What are the purpose and scope of SEO competitor analysis?

SEO competitor analysis compares your website’s performance with that of competing websites in search results to identify keyword, content, and link opportunities worth pursuing, along with your strengths and areas for improvement. The aim is not to copy competitors, but to turn the findings into a strategy that aligns with your business goals. The scope should include identifying competitors, examining rankings and traffic, finding content gaps, and analyzing backlinks, alongside audits of your own website and audience research. If AI search is included, visibility for relevant prompts can also be compared separately.

First, decide which decision the analysis should inform

The analysis should go beyond asking “Who ranks higher?” to determine which gaps are worth addressing. Semrush’s guidance notes that comparing your keyword performance with competitors’ can help you build on existing strengths and plan improvements in weaker areas, while content gaps can inform future content planning.

For example, if a competitor ranks for a term and you do not, that is a potential opportunity—not a reason to publish an article immediately. You still need to confirm whether the term is relevant to your products or services, and whether searchers want information, to compare options, or to buy a product. A ranking gap does not necessarily represent a business opportunity worth pursuing.

The analysis is not limited to brands in the same industry

SEO competitors are websites competing for visibility for the same search terms; they do not necessarily sell the same products. The source material uses the example of a health magazine and a sportswear brand: despite their different businesses, both may compete for fitness-related keywords. You can therefore start by searching for the terms most relevant to your business, noting which websites appear repeatedly, and distinguishing direct business competitors from search competitors.

There is no fixed rule for how many competitors to analyze. Semrush suggests starting with around three to five, while a 2019 Screaming Frog article recommends narrowing the list to fewer than ten. Both emphasize keeping the workload manageable. The latter also suggests using differences in search visibility to distinguish competitors you might catch up with in the short to medium term from long-term targets that require sustained investment.

Compare content, traffic, and links—not just rankings

• Keywords and traffic: Compare ranking keywords, traffic trends, top traffic-driving pages, and acquisition channels to identify opportunities you have not yet covered.
• Content: Record topics, content formats, publishing frequency, and audience engagement to identify gaps and practices worth learning from.
• Backlinks: Examine which websites link to competitors, the reputation of those sources, and the anchor text used as clues for evaluating link-building opportunities.
• Broader visibility: If the research includes AI platforms, you can compare competing websites that appear for relevant prompts and examine communities discussing competing products.

A competitor list cannot replace comprehensive audience needs research

Competitor rankings reflect only the topics competitors already cover. The fact that a competitor has not written about something does not mean the audience has no need for it. Audience questions, forum discussions, and search intent should still be considered to address blind spots in competitor data. Competitive analysis also cannot replace technical, content, and link audits of your own website.

For content teams, a keyword gap list is only a starting point. A 2020 Semrush article notes that, especially in larger teams, you also need to clarify which topics an article should cover and how it should be written to turn research into actionable content work.