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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iitb.ac.in

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

Export

iitb.ac.in

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Hosting Provider

Indian Institute of Technology Bombay

IP Address

103.21.124.133

Server Location

🇮🇳 Mumbai, India

ASN

AS132423

Organization

Indian Institute of Technology Bombay

Server

Nginx

CDN

Nameservers

dns1.iitb.ac.in.dns2.iitb.ac.in.dns3.iitb.ac.in.

Performance

Page Speed

3.2 MB

197 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Drupal

Technology Stack

9 Technologies Detected

Libraries

CSS Frameworks

UI Components

Other

AOS (Animate On Scroll)

Icon Libraries

Font Awesome

Web Servers

Nginx

SEO Analysis

C68/100

iitb.ac.iniitb.ac.in

Home | भारतीय प्रौद्योगिकी संस्थान मुंबई

IIT Bombay is one of India's premier technical universities. It received UNESCO funds from the Soviet Union and was designated an 'Institute of National Impo...

Description truncated.

Title Length40 chars

Recommended: 50-60 chars

Description Length187 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

4 issues found

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Crawlability

Sitemap

robots.txt

41 rules

Sponsored

Security Score

61%Fair

Interactive

HTTPS

No WAF

355d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

12.01.2026

Valid Until

09.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.iitb.ac.iniitb.ac.in

SHA-256 Fingerprint

C9:90:C5:D3:D4:7A:31:E0:6C:53:4C:59:5D:11:BE:61:27:C5:01:24...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

age

cache-control

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

content-encoding

📦 Gzip(gzip)

content-language

content-length

43102

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (4)

fmlr4.iitb.ac.in

fmlr2.iitb.ac.in

fmlr3.iitb.ac.in

fmlr1.iitb.ac.in

Domain Information

iitb.ac.in

Domain Age

21y 12m

Created

28.02.2004

Expires

28.02.2034

Last Updated

18.09.2024

Registrar

ERNET India

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

Segoe UI

78/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Segoe UI

Sans

Body Font

Segoe UI

Sans16px

Contrast Ratio

Reading Comfort

~40 CPL

Needs attention

24px

18px

16px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

✅ Consistent design: Single font family with weight variations is a modern best practice.

⚠️ Cramped layout: 9 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

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)

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Last analyzed: 19 Feb 2026 at 18:22

Historical Analysis & Change Tracking