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

indigo.ca

https://indigo.ca· First analyzed 15 Feb 2026· Updated 15 Feb 2026

Export

indigo.ca

Mobile

Sponsored

Hosting Provider

Akamai Technologies

IP Address

23.36.162.209

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS20940

Organization

Akamai Technologies

CDN

Cloudflare

WAF

Cloudflare

Nameservers

a3-64.akam.net.a1-97.akam.net.a16-66.akam.net.a26-67.akam.net.+2 more

Performance

Page Speed

924 KB

244 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Tailwind CSS

Infrastructure

Hosting

Akamai Technologies

CDN

Cloudflare

Progressive Web App

Service WorkerApple Touch Icon

Technology Stack

12 Technologies Detected

Analytics

Google Analytics

Facebook Pixel Segment Microsoft Clarity

Advertising

Pinterest Tag TikTok Pixel Criteo

Libraries

Meta Frameworks

CSS Frameworks

Customer Support

SEO Analysis

C67/100

indigo.caindigo.ca

Indigo - Chapters - Coles | Canada's Biggest Bookstore

Shop over 7 million books, home decor, stationery, toys, and more. Plus, free shipping and pick up in store on eligible orders.

Title Length54 chars

Recommended: 50-60 chars

Description Length127 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

36 rules

Sitemap reference found

Sponsored

Security Score

75%Good

Critical / Transactional

HTTPS

WAF

31d

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+H3

Valid From

18.12.2025

Valid Until

18.03.2026

Subject Alternative Names (20)

careers.indigo.cacdn.indigoimages.cachapters.indigo.cadynamic-staging.indigoimages.cadynamic.images.indigo.cadynamic.indigoimages.cafulfillment-api.indigo.caid.indigo.ca+12 more

SHA-256 Fingerprint

C9:40:FB:3C:DD:1F:ED:13:55:47:74:5B:A1:AA:2A:81:2F:D6:07:B9...

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=93600

cache-control

🔴 No Cache(max-age=0, no-cache)

cf-cache-status

DYNAMIC

cf-ray

9ce22cd748ae0e82-EWR

content-encoding

⚡ Brotli(br)

content-security-policy

frame-ancestors 'self'; worker-src blob: *.indigo.ca; media-...

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (3)

indigo-ca.mail.protection.outlook.com

indigo-ca.mail.eo.outlook.com

mail.indigo.ca

Domain Information

indigo.ca

Domain Age

25y 3m

Created

31.10.2000

Expires

26.12.2026

Last Updated

09.02.2026

Registrar

Internic.ca Inc.

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Typography & Readability

Futura Indigo Web

61/100

Readability

/30

32/40

18px · LH 1.35

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Futura Indigo Web

Sans

Body Font

Futura Indigo Web

Sans18px

Contrast Ratio

Reading Comfort

~35 CPL

Needs attention

32px

16px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

✅ 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.

⚠️ Cramped layout: 152 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

8 Tools Detected

Enterprise

Behavior Analytics

Microsoft ClarityFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Pinterest AdsMid-Market

TikTok PixelMid-Market

Reddit PixelMid-Market

CriteoEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

segment.indigo.ca(4)analytics.tiktok.com(3)connect.facebook.net(2)s.pinimg.com(2)redditstatic.com(1)

Website Identity

indigo.ca

25 years old

Internic.ca Inc.📧 Microsoft 365

Social Profiles

Facebook X (Twitter)Instagram TikTok Pinterest

Sponsored

Last analyzed: 15 Feb 2026 at 04:49

Historical Analysis & Change Tracking