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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imagekit.io

https://imagekit.io· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

imagekit.io

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

18.165.122.86

Server Location

🇮🇪 Dublin, Ireland

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

CDN

CloudFront

Nameservers

ns-241.awsdns-30.com.ns-876.awsdns-45.net.ns-1393.awsdns-46.org.ns-1925.awsdns-48.co.uk.

Performance

Page Speed

752 KB

100 requests

Image Optimization

WebPImageKit

0–49

50–89

90–100

Architecture Stack

Hybrid

⚡ SSG

Frontend

Framework

Gatsby

CMS

Magento

Infrastructure

Hosting

Amazon Web Services (AWS)

CDN

CloudFront

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

13 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Plausible Analytics Plausible

CSS Frameworks

Frameworks

Meta Frameworks

Fonts

Tag Managers

Customer Support

Marketing

Payments

SEO Analysis

B76/100

imagekit.ioimagekit.io

Image and Video API + AI-powered DAM | ImageKit.io

Optimize, transform, manage and deliver images and video with one real-time API and an AI-powered Digital Asset Management platform.

Title Length50 chars

Recommended: 50-60 chars

Description Length132 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

1 URLs

robots.txt

3 rules

Sponsored

Security Score

15%Critical

Critical / Transactional

HTTPS

No WAF

304d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

22.11.2025

Valid Until

20.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.imagekit.ioimagekit.io

SHA-256 Fingerprint

38:E4:87:60:37:CC:3A:5A:FC:01:83:79:F1:F0:17:D1:2C:40:48:94...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

access-control-allow-credentials

true

age

2630

alt-svc

h3=":443"; ma=86400

cache-control

🟡 0s(public, max-age=0, must-revalidate)

content-encoding

📦 Gzip(gzip)

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

alt2.aspmx.l.google.com

alt3.aspmx.l.google.com

alt4.aspmx.l.google.com

aspmx.l.google.com

+1 more

Domain Information

imagekit.io

Domain Age

10y 1m

Created

17.01.2016

Expires

17.01.2027

Last Updated

07.08.2024

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Legitimate interest basis mentioned

Typography & Readability

Poppins + sans-serif

80/100

Readability

/30

32/40

15px · LH 1.60

Hierarchy

/20

25/25

3.2x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Poppins

Sans48px

Body Font

sans-serif

Sans15px

Contrast Ratio

Reading Comfort

~99 CPL

Needs attention

48px

20px

18px

15px

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

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.2x larger than body text.

✅ 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.

GGoogle Fonts

Business & Marketing Stack

6 Tools Detected

Enterprise

Customer Support

IntercomMid-Market

Live chat and helpdesk tools

Behavior Analytics

PlausibleSMB

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Reddit PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

23 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(4)consent.cookiebot.com(2)googletagmanager.com(2)tags.fullcontact.com(1)widget.intercom.io(1)

Website Identity

Facebook X (Twitter)LinkedIn GitHub

Sponsored

Last analyzed: 19 Feb 2026 at 17:28

Historical Analysis & Change Tracking