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

cgi.com

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

Export

cgi.com

Sponsored

Hosting Provider

CGI Inc

IP Address

128.129.48.48

Server Location

🇨🇦 Montreal, Canada

ASN

AS18563

Organization

CGI Inc

CDN

Akamai

WAF

Akamai

Nameservers

ns1.bluecatdns.com.ns1.f5clouddns.com.ns1.bluecatdns.net.ns1.bluecatdns.org.+1 more

Performance

Page Speed

810 KB

46 requests

Image Optimization

WebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Drupal

Progressive Web App

PWA ReadyWeb ManifestService WorkerApple Touch IconTheme Color

Technology Stack

6 Technologies Detected

Libraries

CSS Frameworks

Icon Libraries

Analytics

Tag Managers

Customer Support

SEO Analysis

A+90/100

cgi.comcgi.com

IT and business consulting services | CGI.com

Since 1976, CGI has grown into one of the largest IT and business consulting services firms in the world. Our 50-year milestone celebrates a history of servi...

Description truncated.

Title Length45 chars

Recommended: 50-60 chars

Description Length263 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

8,645 URLs

robots.txt

116 rules

Sitemap reference found

Sponsored

A+

Security Score

100%Excellent

Interactive

HTTPS

WAF

255d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Entrust Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

30.10.2025

Valid Until

30.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.cgi.comweb.cgi.com

SHA-256 Fingerprint

0A:30:A0:04:33:1C:40:B3:3D:A4:32:50:DB:6A:8B:63:9B:CD:8C:A3...

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🟡 1 Hours(public, max-age=3600)

content-encoding

📦 Gzip(gzip)

content-language

content-length

29339

content-security-policy

object-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe...

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mxa-00131701.gslb.pphosted.com

mxb-00131701.gslb.pphosted.com

Domain Information

cgi.com

Domain Age

39y 1m

Created

19.01.1987

Expires

20.01.2027

Last Updated

21.12.2025

Registrar

Nom-iq Ltd. dba COM LAUDE

DNSSEC

Not Enabled

Privacy & Compliance

TrustArc

Cookie Consent Banner

TrustArc

GDPR Indicators

Cookie consent banner detected

CMP: TrustArc

Data Protection Officer mentioned

Typography & Readability

Arial

88/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

25/25

2.38x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Arial

Sans38px

Body Font

Arial

Sans16px

Contrast Ratio

Reading Comfort

~38 CPL

Needs attention

38px

28px

18px

16px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.4x larger than body text.

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

✅ 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.

Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

TrustArcEnterprise

Cookie consent and privacy compliance tools

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

9 Resources

Scripts

Styles

Async

Defer

Top Script Sources

consent.trustarc.com(3)local(2)data.cgi.com(1)s.go-mpulse.net(1)

Website Identity

Facebook X (Twitter)LinkedIn YouTube

Sponsored

Last analyzed: 17 Feb 2026 at 21:53

Historical Analysis & Change Tracking