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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bizrate.com

https://bizrate.com· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

bizrate.com

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

3.174.113.56

Server Location

🇫🇮 Helsinki, Finland

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

Apache

CDN

CloudFront

Nameservers

ns-398.awsdns-49.com.ns-528.awsdns-02.net.ns-1189.awsdns-20.org.ns-2038.awsdns-62.co.uk.

Performance

Page Speed

478 KB

67 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Amazon Web Services (AWS)

CDN

CloudFront

Technology Stack

6 Technologies Detected

Libraries

CSS Frameworks

Fonts

Analytics

Advertising

Web Servers

SEO Analysis

F29/100

bizrate.combizrate.com

Bizrate | Find Deals, Compare Prices, Read Reviews & Save Money

Bizrate makes comparison shopping easy with Product Reviews, Merchant Ratings, Deal Alerts & Coupons. Compare Prices & Read Reviews on Top Brands & Products ...

Description truncated.

Title Length63 chars

Recommended: 50-60 chars

Description Length237 chars

Recommended: 120-160 chars

Issues (3)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (9/14)
• Missing viewport meta tag - page may not be mobile-friendly

8 issues found

Upgrade to view details

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

195d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

05.08.2025

Valid Until

03.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

bizrate.com*.bizrate.com

SHA-256 Fingerprint

CD:E3:32:68:44:D5:35:BB:C8:16:8E:B3:D3:53:94:D8:58:B6:4F:19...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache,no-store)

content-encoding

📦 Gzip(gzip)

content-language

en-GB

content-type

text/html;charset=UTF-8

date

Fri, 20 Feb 2026 04:22:51 GMT

expires

Thu, 01 Jan 1970 00:00:00 GMT

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

alt1.aspmx.l.google.com

alt3.aspmx.l.google.com

alt2.aspmx.l.google.com

alt4.aspmx.l.google.com

+1 more

Domain Information

bizrate.com

Domain Age

29y 10m

Created

24.04.1996

Expires

25.04.2026

Last Updated

24.03.2025

Registrar

MarkMonitor Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Notice (WP)

Cookie Consent Banner

Cookie Notice (WP)

GDPR Indicators

Cookie consent banner detected

CMP: Cookie Notice (WP)

Typography & Readability

Arial

41/100

Readability

/30

30/40

16px · LH --

Hierarchy

/20

8/25

WCAG

/25

5/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Arial

Body Font

Arial

Sans16px

Contrast Ratio

Reading Comfort

~114 CPL

Needs attention

16px

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

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

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

⚠️ Wide lines: ~114 chars/line. Consider max-width for better reading flow.

⚠️ Cramped layout: 18 elements lack adequate spacing.

GGoogle Fonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

bizrate.com(13)local(3)apis.google.com(1)google-analytics.com(1)securepubads.g.doubleclick.net(1)

Website Identity

bizrate.com

29 years old

MarkMonitor Inc.📧 Google Workspace

Sponsored

Last analyzed: 20 Feb 2026 at 04:23

Historical Analysis & Change Tracking