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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pagefreezer.com

https://pagefreezer.com· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

pagefreezer.com

Sponsored

Hosting Provider

Fastly, Inc.

IP Address

151.101.2.159

Server Location

🇨🇦 Montreal, Canada

ASN

AS54113

Organization

Fastly, Inc.

Server

Flywheel/5.1.0

CDN

Fastly

Nameservers

serena.ns.cloudflare.com.doug.ns.cloudflare.com.

Performance

Page Speed

327 KB

32 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.8.3

cms

Diviv4.27.5

by Elegant Themes

View Theme

Technology Stack

17 Technologies Detected

Plugins

Wp Megamenu Wp Megamenu Pro

Analytics

Fonts

Google Fonts Adobe Fonts (Typekit)

Libraries

CSS Frameworks

Icon Libraries

Tag Managers

Marketing

Platforms

SEO Analysis

A88/100

pagefreezer.compagefreezer.com

Pagefreezer Digital Archiving Software

Preserve and export website, social media, and chat records. Pagefreezer’s digital archiving software keeps your records secure, compliant and litigation-ready.

Title Length38 chars

Recommended: 50-60 chars

Description Length160 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (31/50)

1 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

2 URLs

robots.txt

8 rules

Sponsored

Security Score

78%Good

Static / Informational

HTTPS

No WAF

63d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

23.01.2026

Valid Until

23.04.2026

Subject Alternative Names (4)

pagefreezer.comwww.pagefreezer.comwww.x1social.comx1social.com

SHA-256 Fingerprint

B8:52:02:7B:15:96:2D:E2:56:FF:E1:76:C6:A5:AA:9D:9C:20:2F:1D...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

content-encoding

📦 Gzip(gzip)

content-length

90331

content-type

text/html; charset=UTF-8

date

Thu, 19 Feb 2026 13:51:47 GMT

fastly-restarts

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

aspmx.l.google.com

aspmx2.googlemail.com

aspmx3.googlemail.com

alt2.aspmx.l.google.com

+1 more

Domain Information

pagefreezer.com

Domain Age

16y 2m

Created

13.12.2009

Expires

13.12.2026

Last Updated

14.12.2025

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

Helvetica + Proxima Nova

63/100

Readability

/30

40/40

16px · LH 1.40

Hierarchy

/20

25/25

2.5x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Helvetica

Sans40px

Body Font

Proxima Nova

Sans16px

Contrast Ratio

Reading Comfort

~34 CPL

Needs attention

40px

30px

16px

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

✅ Optimal line spacing: 1.40 ratio ensures comfortable reading.

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

✅ Good performance: Using 2 font families keeps load times fast.

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

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

AAdobe Fonts Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

CRM Systems

HubSpotMid-Market

Customer Relationship Management platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

2 Resources

Scripts

Styles

Async

Defer

Top Script Sources

stats.wp.com(1)pagefreezer.com(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube

Sponsored

Last analyzed: 19 Feb 2026 at 13:51

Historical Analysis & Change Tracking