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.

Back to Search

weebly.com

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

Export

weebly.com

Mobile

Sponsored

Hosting Provider

Weebly

weebly.com

IP Address

74.115.51.7

Server Location

🇺🇸 Oakland, United States

ASN

AS27647

Organization

Weebly, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns-1500.awsdns-59.org.ns-1797.awsdns-32.co.uk.ns-646.awsdns-16.net.ns-123.awsdns-15.com.

Performance

Page Speed

43 KB

71 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Weebly

Technology Stack

6 Technologies Detected

Libraries

jQuery

CSS Frameworks

Tailwind CSS

Fonts

Adobe Fonts (Typekit)

Payments

Square

CDN

Cloudflare

Security

reCAPTCHA

SEO Analysis

B72/100

weebly.comweebly.com

Free Website Builder: Build a Free Website or Online Store | Weebly

Weebly’s free website builder makes it easy to create a website, blog or online store. Find customisable templates, domains and easy-to-use tools for any typ...

Description truncated.

Title Length67 chars

Recommended: 50-60 chars

Description Length179 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Sponsored

Security Score

36%Critical

Interactive

HTTPS

WAF

32d

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache, private)

cf-cache-status

DYNAMIC

cf-ray🇩🇪 Frankfurt

9cbdd69659c618e9-FRA

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Tue, 10 Feb 2026 18:58:29 GMT

Good Warning Issue

Typography & Readability

Proxima Nova

51/100

Readability

/30

40/40

20px · LH 1.75

Hierarchy

/20

13/25

1.5x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Proxima Nova

Sans30px

Body Font

Proxima Nova

Sans20px

Contrast Ratio

Reading Comfort

~32 CPL

Needs attention

30px

20px

23px

16px

20px

✅ Excellent readability: 20px body text is ideal for all devices.

✅ Optimal line spacing: 1.75 ratio ensures comfortable reading.

✅ Good hierarchy: Clear distinction between headlines and body text.

✅ Good performance: Using 1 font families keeps load times fast.

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

⚠️ Risky: Text appears on background images without overlay protection.

AAdobe Fonts Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

13 Resources

Scripts

Styles

Async

Defer

Top Script Sources

gstatic.com(2)cdn2.editmysite.com(2)google.com(2)cdn.cookielaw.org(1)local(1)

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Last analyzed: 10 Feb 2026 at 18:58

Historical Analysis & Change Tracking