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Blazor vs Microsoft ASP.NET

Based on 3 and 139 real audits

View Blazor details | View Microsoft ASP.NET details
MetricBlazorMicrosoft ASP.NETWinner
Performance5341Blazor
Accessibility7887Microsoft ASP.NET
Best Practices8784Blazor
SEO9190Blazor
Security7566Blazor
TTFB159ms491msBlazor
Composite7873Blazor
Performance
Blazor
53
Microsoft ASP.NET
41
Accessibility
Blazor
78
Microsoft ASP.NET
87
Security
Blazor
75
Microsoft ASP.NET
66
SEO
Blazor
91
Microsoft ASP.NET
90
Composite
Blazor
78
Microsoft ASP.NET
73

Blazor outperforms Microsoft ASP.NET in 6 of 7 categories, with a stronger composite score (78 vs 73). Microsoft ASP.NET leads in accessibility.

When to choose Blazor

Choose Blazor when your primary concern is server response time and performance. Its audit data shows consistent strength in these areas across the sampled sites.

When to choose Microsoft ASP.NET

Choose Microsoft ASP.NET when your primary concern is accessibility. Its audit data shows consistent strength in these areas across the sampled sites.

How this comparison was built

Scores are medians across 3 audited Blazor sites and 139 audited Microsoft ASP.NET sites in the BeaverCheck database. Every audit runs the same 100+ checks — Lighthouse performance, security headers, accessibility, SEO, server response time — against a real URL. No vendor input, no sponsorship, no affiliate links. Read the full methodology →

Small sample: one or both technologies have fewer than 10 audited sites. Treat these numbers as directional — medians stabilize around 20–30 audits per side.

FAQ

Which is faster, Blazor or Microsoft ASP.NET?
Based on real BeaverCheck audits, Blazor sites score higher on Lighthouse performance (53 vs 41 on average).
Which has better security, Blazor or Microsoft ASP.NET?
Blazor sites score higher on security analysis (75 vs 66 on average).
Which has better accessibility, Blazor or Microsoft ASP.NET?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Microsoft ASP.NET (87 vs 78). Both technologies can be made fully accessible with care — the difference reflects common patterns in the sampled sites, not inherent platform limits.
Which is better for SEO, Blazor or Microsoft ASP.NET?
Blazor sites score higher on Lighthouse SEO signals (91 vs 90 on average), which cover meta tags, crawlability, mobile friendliness, and structured data. Content strategy and backlinks still matter more than platform choice for ranking.
Which has faster server response (TTFB), Blazor or Microsoft ASP.NET?
Blazor sites show lower Time to First Byte (159 ms vs 491 ms on average). TTFB depends heavily on hosting and CDN setup rather than the technology itself, but the sampled sites suggest a meaningful difference in common deployment patterns.
Should I choose Blazor or Microsoft ASP.NET for my website?
Both platforms have trade-offs. Blazor scores higher on overall composite score while Blazor may excel in metrics you care about most. Run a free BeaverCheck audit on a real site using each to compare the metrics relevant to your use case.
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