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Squarespace vs Astro

Security & risk comparison · Updated June 2026

How does Squarespace compare to Astro on security, AI-readiness, and total cost of ownership? We scored both across 7 dimensions using NVD/NIST CVE data, GitHub metrics, and our scan of 10M+ sites.

Key finding

Astro scores 84/100 overall versus Squarespace's 49/100. Astro has 3 total CVEs compared to Squarespace's 0, though its larger ecosystem contributes to a higher CVE count. (Source: WebPulse framework scoring, NVD/NIST, July 2026)

49
Squarespace
Modern · JAVA
vs
84
Astro
Modern · JAVASCRIPT
Dimension-by-dimension breakdown
security Astro
50
95
Squarespace
Astro
performance Tie
65
65
Squarespace
Astro
ecosystem Astro
50
88
Squarespace
Astro
ai readiness Astro
30
92
Squarespace
Astro
developer experience Astro
50
78
Squarespace
Astro
market trajectory Astro
50
70
Squarespace
Astro
cost of ownership Astro
55
90
Squarespace
Astro
Security details
Metric Squarespace Astro
Total CVEs 0 3
Critical CVEs 0 0
Exploited (KEV) 0 0
CVEs last year 0 1
Avg CVSS 0 3.2
Security score 50/100 95/100
Caution
Squarespace

Squarespace scores 50/100. Evaluate modern alternatives for better security and AI-readiness.

Recommended
Astro

Astro scores 84/100. Verdict: Recommended.

Quick facts
Squarespace
Category: Website_builder
Language: JAVA
First release: 2004
Generation: Modern
Trend: Declining
Astro
Category: Ssg
Language: JAVASCRIPT
First release: 2021
Generation: Modern
Trend: Rising
Market share: 0.4%
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Data sourced from NVD/NIST CVE database, GitHub API, and WebPulse framework scanner. Scores calculated using a 7-dimension model covering security, performance, ecosystem health, AI-readiness, developer experience, market trajectory, and cost of ownership. Updated June 2026.