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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iitk.ac.in

https://iitk.ac.in· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

iitk.ac.in

Mobile

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Hosting Provider

Computer Center IIT Kanpur INDIA

IP Address

202.3.77.184

Server Location

🇮🇳 Kanpur, India

ASN

AS55479

Server

Apache

Nameservers

ns2.iitk.ac.in.ns1.iitk.ac.in.proxy.iitk.ac.in.

Performance

Page Speed

7.9 MB

115 requests

Image Optimization

WebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Tailwind CSS

CMS

Drupal

Infrastructure

Hosting

Computer Center IIT Kanpur INDIA

Technology Stack

6 Technologies Detected

UI Components

Libraries

Other

CSS Frameworks

Web Servers

SEO Analysis

B76/100

iitk.ac.iniitk.ac.in

Indian Institute of Technology Kanpur | IIT Kanpur

Experience excellence at IIT Kanpur – a hub of innovation, top-tier education, and cutting-edge research in engineering and technology. Globally Acclaimed.

Title Length50 chars

Recommended: 50-60 chars

Description Length155 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

2 issues found

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Crawlability

Sitemap

robots.txt

54 rules

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Security Score

81%Very Good

Interactive

HTTPS

No WAF

293d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

30.01.2026

Valid Until

09.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.iitk.ac.iniitk.ac.in

SHA-256 Fingerprint

5B:E0:E7:5E:3E:6C:FA:C2:72:F9:CE:95:BF:8C:81:9D:A1:61:15:B7...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-allow-origin

cache-control

🔴 No Cache(must-revalidate, no-cache, private)

connection

Keep-Alive

content-security-policy

default-src 'self'; script-src 'self'; style-src 'self' http...

content-type

text/html; charset=UTF-8

content-language

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (3)

mail1.iitk.ac.in

mail0.iitk.ac.in

mailo.iitk.ac.in

Domain Information

iitk.ac.in

Domain Age

21y 12m

Created

28.02.2004

Expires

28.02.2029

Last Updated

05.01.2020

Registrar

ERNET India

DNSSEC

Not Enabled

Typography & Readability

Paralucent

71/100

Readability

/30

40/40

25px · LH 1.60

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Paralucent

Sans

Body Font

Paralucent

Sans25px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

18px

30px

23px

25px

Minor Second

Scale

✅ Excellent readability: 25px body text is ideal for all devices.

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

✅ Good performance: Using 2 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.

✅ Protected text on images: Using gradient for readability.

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Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(20)

Website Identity

Facebook X (Twitter)Instagram YouTube

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Last analyzed: 19 Feb 2026 at 15:42

Historical Analysis & Change Tracking