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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2checkout.com

https://2checkout.com· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

2checkout.com

Sponsored

Hosting Provider

Incapsula Inc

IP Address

45.60.12.94

Server Location

🇺🇸 New York, United States

ASN

AS19551

Organization

Incapsula Inc

Server

Apache

CDN

Nameservers

dns2.cscdns.net.dns1.cscdns.net.

Performance

Page Speed

1.1 MB

90 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Incapsula Inc

CDN

Technology Stack

10 Technologies Detected

Analytics

Libraries

CSS Frameworks

Tag Managers

Customer Support

Advertising

Social

Web Servers

SEO Analysis

A+96/100

2checkout.com2checkout.com

Merchant of Record for Online Payment Processing | 2Checkout

Power your global sales with online payment processing and merchant of record services. Accept credit cards, debit, PayPal - and scale globally!

Title Length60 chars

Recommended: 50-60 chars

Description Length144 chars

Recommended: 120-160 chars

Sponsored

Security Score

65%Fair

Critical / Transactional

HTTPS

WAF

358d

Certificate Details

Type

Extended Validation (EV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

10.02.2026

Valid Until

10.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.2checkout.com2checkout.com

SHA-256 Fingerprint

2D:0F:F6:47:00:EB:C2:CB:5A:F5:CC:F4:EE:01:E8:A7:1E:17:7E:B9...

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-security-policy

frame-ancestors *.2checkout.com *.2co.com *.avangate.com

content-type

text/html; charset=UTF-8

date

Tue, 17 Feb 2026 20:26:46 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

2checkout-com.mail.protection.outlook.com

Domain Information

2checkout.com

Domain Age

26y 1m

Created

28.12.1999

Expires

28.12.2026

Last Updated

24.12.2025

Registrar

CSC Corporate Domains, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Typography & Readability

Monserrat + sans-serif

56/100

Readability

/30

40/40

16px · LH 1.63

Hierarchy

/20

18/25

2.5x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Monserrat

Sans40px

Body Font

sans-serif

Sans16px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

40px

30px

26px

22px

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.62 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.5x larger than body text.

✅ Good performance: Using 2 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.

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Enterprise

Marketing Automation

MarketoEnterprise

Email marketing and automation platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

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Scripts & Styles

14 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(4)sst.2checkout.com(3)munchkin.marketo.net(3)b2bjsstore.s3.us-west-2.amazonaws.com(1)assets.apollo.io(1)

Website Identity

2checkout.com

26 years old

CSC Corporate Domains, Inc.📧 Microsoft 365

Social Profiles

Facebook X (Twitter)Instagram LinkedIn

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Last analyzed: 17 Feb 2026 at 20:26

Historical Analysis & Change Tracking