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.

Back to Search

sectigo.com

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

Export

sectigo.com

Sponsored

Hosting Provider

Sectigo Limited

IP Address

91.199.212.90

Server Location

🇬🇧 Bradford, United Kingdom

ASN

AS48447

Organization

Sectigo Limited

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns3.as48447.net.ns1.as48447.net.ns2.as48447.net.

Performance

Page Speed

1.6 MB

207 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Hybrid

⚙️ SSR

Frontend

Framework

Nuxt.js

Styling

Tailwind CSS

CMS

HubSpot CMS

Infrastructure

Hosting

Sectigo Limited

CDN

Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

23 Technologies Detected

Analytics

Google Analytics

Facebook Pixel

Hotjar

Amplitude Matomo FullStory

Advertising

Google Ads Twitter Ads LinkedIn Ads Microsoft Advertising

Fonts

Google Fonts Adobe Fonts (Typekit)Adobe Fonts

Meta Frameworks

CSS Frameworks

Tag Managers

Marketing

Other

Payments

Popups & Forms

CDN

Security

Customer Support

SEO Analysis

A82/100

sectigo.comsectigo.com

Certificate Management Solutions & SSL Certificates | Sectigo® Offi...

Sectigo is a leading provider of SSL certificates & automated certificate management solutions. A Certificate Authority trusted by global brands for 20+ years.

Title truncated.

Title Length71 chars

Recommended: 50-60 chars

Description Length159 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (102/165)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

robots.txt

28 rules

Sitemap reference found

Sponsored

Security Score

0%Critical

Critical / Transactional

HTTPS

WAF

79d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

06.02.2026

Valid Until

07.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (6)

sectigo.comconnect.sectigo.compki-risk-assessment-tool.sectigo.comstore.sectigo.comweb-assets.sectigo.comwww.sectigo.com

SHA-256 Fingerprint

01:9F:02:E7:E2:7E:3F:87:E2:C4:FC:A3:47:DD:F8:4C:58:68:B2:63...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache, max-age=0, s-maxage=0)

cf-cache-status

MISS

cf-ray🇩🇪 Frankfurt

9cf411bb1db1d406-FRA

content-encoding

📦 Gzip(gzip)

content-security-policy

frame-ancestors 'self' *.trust-provider.com secure.sectigo.c...

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mxb-0097fb02.gslb.pphosted.com

mxa-0097fb02.gslb.pphosted.com

Domain Information

sectigo.com

Domain Age

7y 6m

Created

16.08.2018

Expires

01.11.2028

Last Updated

01.11.2018

Registrar

CSC Corporate Domains, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Legitimate interest basis mentioned

Typography & Readability

aktiv-grotesk + sans-serif

78/100

Readability

/30

32/40

15px · LH 1.60

Hierarchy

/20

18/25

3.2x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

aktiv-grotesk

Sans48px

Body Font

sans-serif

Sans15px

Contrast Ratio

Reading Comfort

~47 CPL

Optimal (45–75)

48px

40px

15px

⚠️ Small text: 15px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.2x larger than 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.

✅ Protected text on images: Using gradient for readability.

AAdobe Fonts Buy on MyFonts

Business & Marketing Stack

7 Tools Detected

Enterprise

CRM Systems

HubSpotMid-Market

Customer Relationship Management platforms

Customer Support

DriftMid-Market

Live chat and helpdesk tools

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

UserpilotMid-Market

User behavior and product analytics

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

A/B Testing & Optimization

VWO (Visual Website Optimizer)Mid-Market

Experimentation and conversion optimization

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(3)youtube.com(2)consent.cookiebot.com(2)js.userpilot.io(2)js.hsforms.net(1)

Website Identity

Facebook X (Twitter)LinkedIn YouTube

Sponsored

Last analyzed: 17 Feb 2026 at 08:56

Historical Analysis & Change Tracking