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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webtoons.com

https://webtoons.com· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

webtoons.com

Sponsored

Hosting Provider

NBP

IP Address

110.93.151.163

Server Location

🇰🇷 Seongnam-si, South Korea

ASN

AS23576

Server

nfront

CDN

Varnish

Nameservers

ns3.naver.com.ns2.naver.com.ns1.naver.com.

Performance

Page Speed

769 KB

128 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

NBP

CDN

Varnish

Detected API Sources

https://cdn.id5-sync.com/api/1...

Technology Stack

8 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel

Advertising

Twitter Ads TikTok Pixel Snapchat Pixel

CSS Frameworks

Tailwind CSS

Customer Support

Zendesk

SEO Analysis

D52/100

webtoons.comwebtoons.com

WEBTOON - Read Comics, Manga & Manhwa

WEBTOON is home to thousands of stories across 23 genres including romance, comedy, action, fantasy, and horror. Read comics, webcomics, manga, and manhwa on...

Description truncated.

Title Length37 chars

Recommended: 50-60 chars

Description Length190 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag - every page should have one H1
• Missing viewport meta tag - page may not be mobile-friendly

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

3 URLs

robots.txt

26 rules

Sponsored

Security Score

61%Fair

Interactive

HTTPS

No WAF

154d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

22.07.2025

Valid Until

21.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (4)

*.webtoons.comwebtoons.com*.webtoon.comwebtoon.com

SHA-256 Fingerprint

CE:5B:DA:4F:2D:B4:59:A7:42:6F:F4:0A:25:64:B5:AC:6C:6C:37:CB...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ch

Sec-CH-UA,Sec-CH-UA-Full-Version-List,Sec-CH-UA-Platform,Sec...

accept-ranges

bytes

age

cache-control

🔵 Public(public)

content-encoding

📦 Gzip(gzip)

content-language

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

mx2.navercorp.com

mx1.navercorp.com

Domain Information

webtoons.com

Domain Age

27y 7m

Created

20.07.1998

Expires

19.07.2026

Last Updated

21.10.2025

Registrar

Gabia, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

consentmanager

Cookie Consent Banner

consentmanager

GDPR Indicators

Cookie consent banner detected

CMP: consentmanager

Data Protection Officer mentioned

Typography & Readability

-apple-system

28/100

Readability

/30

10/40

12px · LH --

Hierarchy

/20

8/25

WCAG

/25

5/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

-apple-system

Sans

Body Font

-apple-system

Sans12px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

22px

15px

12px

❌ Critical: 12px body text is too small. Increase to at least 14px.

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

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

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

⚠️ Cramped layout: 23 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

Business & Marketing Stack

6 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Twitter/X AdsMid-Market

Snapchat PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(8)ssl.pstatic.net(2)cdn.consentmanager.net(2)c.amazon-adsystem.com(1)cdn.id5-sync.com(1)

Website Identity

Facebook X (Twitter)Instagram

Sponsored

Last analyzed: 17 Feb 2026 at 04:00

Historical Analysis & Change Tracking