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

flipkart.com

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

Export

flipkart.com

Sponsored

Hosting Provider

Flipkart Internet Pvt Ltd

IP Address

163.53.76.86

Server Location

🇮🇳 Bengaluru, India

ASN

AS9752

Organization

Flipkart Internet Pvt Ltd

Server

Nginx

Nameservers

sdns14.ultradns.net.sdns14.ultradns.org.sdns14.ultradns.biz.sdns14.ultradns.com.

Performance

Page Speed

113 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Flipkart Internet Pvt Ltd

Technology Stack

4 Technologies Detected

Other

CSS Frameworks

Web Servers

Security

SEO Analysis

C67/100

flipkart.comflipkart.com

Online Shopping Site for Mobiles, Electronics, Furniture, Grocery, ...

No description available for this page.

Title truncated.

Title Length104 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description - important for click-through rates

4 issues found

Upgrade to view details

Sponsored

Security Score

41%Poor

Interactive

HTTPS

No WAF

150d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

Valid From

11.11.2025

Valid Until

17.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (19)

www.flipkart.comaccounts.flipkart.comairtel.store.flipkart.comauth.flipkart.comaxis.store.flipkart.combhaskar.store.flipkart.comdl.flipkart.comindusind.store.flipkart.com+11 more

SHA-256 Fingerprint

27:99:0C:78:ED:C6:59:BD:3A:CA:24:47:3E:61:FC:54:24:D9:85:64...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ch

Sec-CH-UA,Sec-CH-UA-Arch,Sec-CH-UA-Full-Version,Sec-CH-UA-Fu...

cache-control

🔴 No Cache(private, no-cache, no-store, must-revalidate, max-age=0)

content-encoding

⚡ Brotli(br)

content-security-policy

default-src 'self' https://*.flipkart.com https://*.flixcart...

content-type

text/html; charset=utf-8

date

Mon, 16 Feb 2026 04:01:18 GMT

Good Warning Issue

Email Infrastructure

Mimecast

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

eu-smtp-inbound-1.mimecast.com

eu-smtp-inbound-2.mimecast.com

Domain Information

flipkart.com

Domain Age

18y 8m

Created

03.06.2007

Expires

03.06.2026

Last Updated

04.06.2025

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

Arial

65/100

Readability

/30

20/40

12px · LH 1.50

Hierarchy

/20

15/25

1.33x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Arial

Sans16px

Body Font

Arial

Sans12px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

16px

14px

12px

❌ Critical: 12px body text is too small. Increase to at least 14px.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

✅ 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.

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

static-assets-web.flixcart.com(9)

Sponsored

Last analyzed: 16 Feb 2026 at 04:02

Historical Analysis & Change Tracking