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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kakao.com

https://kakao.com· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

kakao.com

Mobile

Sponsored

Hosting Provider

KAKAO

IP Address

211.242.11.41

Server Location

🇰🇷 Seongnam-si, South Korea

ASN

AS9457

Organization

KAKAO

Nameservers

ns1.kakao.com.ns2.kakao.com.

Performance

Page Speed

606 KB

39 requests

0–49

50–89

90–100

Architecture Stack

Hybrid

⚙️ SSR

Frontend

Framework

Nuxt.js

Infrastructure

Hosting

KAKAO

Technology Stack

7 Technologies Detected

Analytics

Meta Frameworks

Other

CSS Frameworks

Tag Managers

SEO Analysis

C67/100

kakao.comkakao.com

카카오

누구나 일상에서 AI를 경험할 수 있도록

Title Length3 chars

Recommended: 50-60 chars

Description Length22 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (14/14)

4 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

7 rules

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

229d

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

01.09.2025

Valid Until

29.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.kakaocorp.comkakaocorp.com

SHA-256 Fingerprint

6F:08:E0:C5:F7:6F:28:CB:40:A3:17:3C:CC:9A:D7:56:B0:92:35:01...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

none

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Thu, 12 Feb 2026 11:24:20 GMT

etag

"26222-YlZ8AV+2Tq6TMWg7bE5579zjMOU"

strict-transport-security

max-age=31536000

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (4)

mx4.kakao.com

mx2.kakao.com

mx3.kakao.com

mx1.kakao.com

Domain Information

kakao.com

Domain Age

29y 1m

Created

29.12.1996

Expires

28.12.2026

Last Updated

17.12.2025

Registrar

Megazone Corp., dba HOSTING.KR

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Apple SD Gothic Neo

68/100

Readability

/30

40/40

16px · LH 1.75

Hierarchy

/20

20/25

1.75x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Apple SD Gothic Neo

Sans28px

Body Font

Apple SD Gothic Neo

Sans16px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

28px

21px

16px

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

✅ Optimal line spacing: 1.75 ratio ensures comfortable reading.

✅ Good hierarchy: Clear distinction between headlines and body text.

✅ Good performance: Using 2 font families keeps load times fast.

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

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

Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

11 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(4)connect.facebook.net(2)googletagmanager.com(1)developers.kakao.com(1)t1.daumcdn.net(1)

Sponsored

Last analyzed: 12 Feb 2026 at 11:24

Historical Analysis & Change Tracking