Porter's Five Forces

Porter’s Five Forces evaluates the structure of competition in an industry rather than ranking the websites of a few direct competitors. It considers rivalry among existing firms, the threat of new entrants, the threat of substitute offerings, the bargaining power of suppliers and the bargaining power of buyers. Each force can influence the ability of companies in that market to sustain attractive margins.

For a web agency, rivalry includes other agencies, while substitutes might include do-it-yourself website builders or in-house teams. Supplier power might come from a critical platform or specialist; buyer power can rise when prospects can easily compare interchangeable offers. Entry barriers may include trusted client relationships, niche expertise and accumulated operating capabilities. Assess forces with evidence such as switching costs, pricing trends, customer concentration and alternative channels.

Five Forces is not a checklist that produces a universal numeric competitiveness score. Its conclusion depends on the market boundaries chosen and can change as technology or customer behavior evolves. Use it to frame strategic choices, then test the findings against actual customer interviews, economics and competitor behavior. It is narrower than SWOT, which also includes company-specific strengths and weaknesses, and different from a single competitor audit.