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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vpnmentor.com

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

Export

vpnmentor.com

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.66.43.25

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

dan.ns.cloudflare.com.anna.ns.cloudflare.com.

Performance

Page Speed

816 KB

50 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

VpnMentorv1

by Spirit

View Theme

Technology Stack

10 Technologies Detected

Analytics

Frameworks

UI Components

CSS Frameworks

Icon Libraries

Tag Managers

Advertising

Microsoft Advertising

Reviews

Trustpilot

CDN

Cloudflare

SEO Analysis

A+94/100

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Title Length55 chars

Recommended: 50-60 chars

Description Length153 chars

Recommended: 120-160 chars

Sponsored

Security Score

86%Very Good

Interactive

HTTPS

WAF

35d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

27.12.2025

Valid Until

27.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

vpnmentor.com*.vpnmentor.com

SHA-256 Fingerprint

AE:48:99:48:4A:B8:BB:AE:61:B2:1C:A0:C1:3A:15:AE:6D:B2:86:36...

Upgrade to view header details

HTTP Headers

Developer Console

abt-md5url

ab_7f6010e64d925349b26fdb9a6f0ea15a

cache-control

🟢 1 Year(max-age=31536000)

candidate

https://www.vpnmentor.com/

candidate-key

www.vpnmentor.com/

candidate-md5url

bbe10453a214ee7080d663d6a2b1c21b

cf-cache-status

DYNAMIC

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

aspmx.l.google.com

aspmx2.googlemail.com

aspmx3.googlemail.com

alt1.aspmx.l.google.com

+1 more

Domain Information

vpnmentor.com

Domain Age

10y 3m

Created

23.11.2015

Expires

23.11.2026

Last Updated

24.11.2025

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Typography & Readability

Arial

70/100

Readability

/30

22/40

14px · LH --

Hierarchy

/20

20/25

1.71x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Arial

Sans24px

Body Font

Arial

Sans14px

Contrast Ratio

Reading Comfort

~40 CPL

Needs attention

24px

25px

20px

14px

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

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

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

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

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

✅ Protected text on images: Using gradient for readability.

Business & Marketing Stack

4 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

15 Resources

Scripts

Styles

Async

Defer

Top Script Sources

bat.bing.com(4)local(4)vpnmentor.com(2)cdn.cookielaw.org(1)server-side-tagging-mykimv3nta-uc.a.run.app(1)

Website Identity

Facebook X (Twitter)LinkedIn YouTube

Sponsored

Last analyzed: 20 Feb 2026 at 00:17

Historical Analysis & Change Tracking