What does StackOptic analyze?

StackOptic runs 18 analysis modules on any public website from a single URL. It detects 7,000+ technologies (CMS, frameworks, analytics, payments, CDN, hosting), evaluates SSL certificates and HTTP security headers with grades from A+ to F, measures Core Web Vitals (LCP, CLS, TBT, FCP), audits SEO meta tags and structured data, checks email security (SPF, DKIM, DMARC), analyzes AI & LLM readiness including bot access and llms.txt validation, extracts color palettes and typography, estimates carbon footprint, and generates permanent shareable reports.

Does it work on sites behind Cloudflare or bot protection?

Yes. StackOptic uses a real browser engine that loads pages exactly like a human visitor — executing JavaScript, rendering CSS, and handling redirects. This allows it to bypass Cloudflare, LiteSpeed, Sucuri, and other bot protection systems where traditional crawlers and HTTP-only tools fail.

What do I get on the free plan?

The free plan includes 5 analyses per day with access to all 18 modules, full scores, technology detection, and security grades. Every report is permanently accessible via a unique shareable URL — no login required to view. No credit card needed. AI-powered insights, re-analysis, PDF/JSON export, and comparison features are available on Pro ($24/mo) and Agency ($99/mo) plans.

What is AI & LLM readiness analysis?

This module evaluates how visible and citable your website is to AI search engines like ChatGPT, Perplexity, Google AI Overviews, and Claude. It audits access permissions for 8 major AI bots, validates llms.txt and llms-full.txt files, scores citation-ready content structure, and analyzes structured data (JSON-LD) for GEO readiness — helping you rank in the next generation of search.

How long does an analysis take?

Most analyses complete in under 10 seconds. StackOptic runs all 18 modules in parallel using a real browser session, so you get technology detection, security audit, performance metrics, SEO analysis, and AI readiness scoring simultaneously.

How accurate are the results?

Detection is based on real browser execution — DOM inspection, JavaScript runtime analysis, HTTP headers, and DNS records. With 7,000+ technology signatures and Lighthouse-calibrated performance scoring, StackOptic achieves high accuracy for mainstream technologies.

What security checks are performed?

The security module evaluates SSL/TLS certificates, 12+ HTTP security headers (HSTS, CSP, X-Frame-Options, Permissions-Policy, Referrer-Policy), HTTPS enforcement, and email authentication (SPF, DKIM, DMARC). Each site receives a letter grade from A+ to F with specific remediation steps.

Do you store the websites I analyze?

StackOptic only stores publicly available information that any visitor to a website would see — HTML content, HTTP headers, DNS records, and screenshots. We do not access private data, log in to websites, or perform any intrusive testing.

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squarespace.com

https://squarespace.com· First analyzed 10 Feb 2026· Updated 10 Feb 2026

Export

squarespace.com

Mobile

Sponsored

Hosting Provider

Squarespace

squarespace.com

IP Address

198.49.23.181

Server Location

🇺🇸 New York, United States

ASN

AS53831

Organization

Squarespace, Inc.

Server

Squarespace

Nameservers

dns4.p06.nsone.net.ns01.squarespacedns.com.ns02.squarespacedns.com.ns03.squarespacedns.com.+4 more

Performance

Page Speed

750 KB

75 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Squarespace

website_builder

Technology Stack

6 Technologies Detected

CSS Frameworks

Other

Analytics

Tag Managers

Security

SEO Analysis

B78/100

squarespace.comsquarespace.com

Website Builder – Easily Create Your Own Website — Squarespace

Create a website and grow your business with a free Squarespace trial. Start with customizable website templates, AI website builder tools, or a domain name.

Title Length62 chars

Recommended: 50-60 chars

Description Length159 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (81/83)

2 issues found

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Sponsored

Security Score

46%Poor

Interactive

HTTPS

No WAF

21d

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

4081

content-encoding

📦 Gzip(gzip)

content-length

87690

content-type

text/html;charset=utf-8

date

Tue, 10 Feb 2026 19:17:49 GMT

Good Warning Issue

Typography & Readability

Helvetica

60/100

Readability

/30

25/40

50px · LH 1.00

Hierarchy

/20

8/25

1.44x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

17/20

System fonts

Heading Font

Helvetica

Sans72px

Body Font

Helvetica

Sans50px

Contrast Ratio

Reading Comfort

~40 CPL

Needs attention

72px

50px

34px

50px

✅ Excellent readability: 50px body text is ideal for all devices.

⚠️ Tight line spacing (1.00). Consider 1.4-1.6 for better readability.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

✅ Consistent design: Single font family with weight variations is a modern best practice.

⚠️ Cramped layout: 235 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

TrustArcEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

16 Resources

Scripts

Styles

Async

Defer

Top Script Sources

assets.squarespace.com(5)static1.squarespace.com(3)googletagmanager.com(2)consent.trustarc.com(2)

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Last analyzed: 10 Feb 2026 at 20:32

Historical Analysis & Change Tracking