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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welivesecurity.com

https://welivesecurity.com· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

welivesecurity.com

Sponsored

Hosting Provider

ESET, spol. s r.o

IP Address

91.228.167.128

Server Location

🇸🇰 Bratislava, Slovakia

ASN

AS50881

Organization

ESET, spol. s r.o

CDN

Akamai

WAF

Akamai

Nameservers

dns2.p03.nsone.net.dns3.p03.nsone.net.dns4.p03.nsone.net.dns1.p03.nsone.net.

Performance

Page Speed

1.5 MB

42 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

ESET, spol. s r.o

CDN

Akamai

Technology Stack

7 Technologies Detected

Analytics

Frameworks

Other

CSS Frameworks

Tag Managers

Customer Support

SEO Analysis

B74/100

welivesecurity.comwelivesecurity.com

Award-winning news, views, and insight from the ESET security commu...

WeLiveSecurity comes from the brains at ESET - experienced researchers with in-depth knowledge of the latest threats and security trends.

Title truncated.

Title Length71 chars

Recommended: 50-60 chars

Description Length137 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

3 issues found

Upgrade to view details

Sponsored

Security Score

76%Good

Interactive

HTTPS

WAF

336d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

07.01.2026

Valid Until

18.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.welivesecurity.comwelivesecurity.com

SHA-256 Fingerprint

57:29:CD:5A:30:44:48:A0:E2:F8:B6:DB:28:91:F8:EE:95:85:25:E3...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-allow-origin

cache-control

🟡 3374s(public, max-age=3374)

content-encoding

⚡ Brotli(br)

content-length

15473

content-security-policy

default-src 'none'; child-src https://disqus.com https://var...

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

b.mx.eset.com

a.mx.eset.com

Domain Information

welivesecurity.com

Domain Age

13y 2m

Created

21.11.2012

Expires

21.11.2026

Last Updated

21.10.2025

Registrar

CSL Computer Service Langenbach GmbH d/b/a joker.com

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

Typography & Readability

Fedra Sans Alt Pro

55/100

Readability

/30

24/40

14px · LH 1.29

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Fedra Sans Alt Pro

Sans

Body Font

Fedra Sans Alt Pro

Sans14px

Contrast Ratio

Reading Comfort

~38 CPL

Needs attention

23px

14px

Minor Second

Scale

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

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

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

⚠️ Cramped layout: 55 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(4)welivesecurity.com(3)cdn.esetstatic.com(1)

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Last analyzed: 16 Feb 2026 at 13:42

Historical Analysis & Change Tracking