Custom vs Format — Platform Benchmark

51.8

Custom

254 sites

54.4

Format

73 sites

WINNER

Score Summary

Avg AI Readability

52.2 54.8

Avg Security

37.2 66.5

Avg Efficiency

56.6 50.2

Avg Total Score

51.8 54.4

Avg Structure

47.1 47.4

Avg Load Complexity

67.6 50.9

Avg Lighthouse

54.9 52.4

Best Site Score

87.6 68.9

Worst Site Score

15.7 27.3

Custom Format

Performance by Industry

Average total score for each platform within shared industries.

Industry	Custom	Format
Architecture	52.4 6 sites	60.6 5 sites
Content Creation	54.1 6 sites	—
Corporate-personal	47.3 86 sites	63.3 2 sites
Design	66.2 3 sites	—
Photography	53.9 153 sites	53.7 66 sites

Comparison Insights

Overall Verdict

Format holds a modest 2.6-point lead over Custom. The difference is real but not decisive.

Dimension Edge

Custom leads in: Efficiency, Load Complexity, Lighthouse. Format leads in: AI Readability, Security. Custom has a broader performance advantage across dimensions.

Opportunities for improvement

Custom could target AI Readability, Security to close the gap.
Format could target Efficiency, Load Complexity, Lighthouse to improve.

Industry-by-Industry Results

Format wins in 2 of 5 shared industries - its overall lead holds across verticals.

Sample Size Consideration

Custom has 3.5× more audited sites than Format. Larger samples surface more variation and may pull averages toward the mean, so this comparison should be read with that in mind.