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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indianvisaonline.gov.in

https://indianvisaonline.gov.in· First analyzed 20 Feb 2026· Updated 20 Feb 2026

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Hosting Provider

NDCSP Delhi

IP Address

164.100.129.11

Server Location

🇮🇳 Delhi, India

ASN

AS4758

Organization

NDCSP Delhi

Nameservers

ns2.nic.in.ns10.nic.in.ns1.nic.in.ns7.nic.in.

Performance

Page Speed

747 KB

30 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Tailwind CSS

Infrastructure

Hosting

NDCSP Delhi

Technology Stack

5 Technologies Detected

CSS Frameworks

Libraries

UI Components

Icon Libraries

SEO Analysis

D47/100

indianvisaonline.gov.inindianvisaonline.gov.in

India Visa Online

No description available for this page.

Title Length17 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description - important for click-through rates

6 issues found

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Security Score

56%Poor

Interactive

HTTPS

No WAF

326d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

eMudhra Technologies Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

19.12.2025

Valid Until

13.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (8)

www.indianvisaonline.gov.inindianvisaonline.gov.inwww.consprom.nic.inconsprom.nic.inwww.indianvisa-bangladesh.nic.inindianvisa-bangladesh.nic.inwww.prakashpurb550.mha.gov.inprakashpurb550.mha.gov.in

SHA-256 Fingerprint

6E:D5:E1:5C:4A:A1:1C:DA:17:78:D2:97:B3:3C:4C:E1:69:39:99:43...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

connection

keep-alive

content-length

16675

content-type

text/html

date

Fri, 20 Feb 2026 11:32:32 GMT

keep-alive

timeout=20

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

Domain Information

indianvisaonline.gov.in

Domain Age

15y 10m

Created

01.04.2010

Expires

01.04.2026

Last Updated

16.05.2025

Registrar

National Informatics Centre

DNSSEC

Not Enabled

Typography & Readability

Conv_ROCKB + Conv_ROCK

57/100

Readability

/30

32/40

15px · LH 1.50

Hierarchy

/20

21/25

2x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

17/20

System fonts

Heading Font

Conv_ROCKB

Sans30px

Body Font

Conv_ROCK

Sans15px

Contrast Ratio

Reading Comfort

~40 CPL

Needs attention

30px

15px

⚠️ Small text: 15px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

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

⚠️ Risky: Text appears on background images without overlay protection.

⚠️ Inconsistent alignment: Mix of left/center/right creates visual noise.

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Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

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Scripts & Styles

11 Resources

Scripts

Styles

Async

Defer

Top Script Sources

js(5)

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Last analyzed: 20 Feb 2026 at 11:33

Historical Analysis & Change Tracking