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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kck.st

https://kck.st· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

kck.st

Sponsored

Hosting Provider

Google Cloud Platform

cloud.google.com

IP Address

67.199.248.13

Server Location

🇺🇸 New York, United States

ASN

AS396982

Organization

Bitly Inc

Server

Nginx

Nameservers

ns-1250.awsdns-28.org.ns-2046.awsdns-63.co.uk.ns-38.awsdns-04.com.ns-798.awsdns-35.net.

Performance

Page Speed

97 KB

42 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

JointsWP-CSS-masterCustom

Technology Stack

9 Technologies Detected

Analytics

Libraries

CSS Frameworks

Tag Managers

Marketing

Other

Web Servers

Plugins

SEO Analysis

B72/100

kck.stkck.st

Custom Domain by Bitly

No description available for this page.

Title Length22 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description - important for click-through rates

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

robots.txt

31 rules

Sitemap reference found

Sponsored

Security Score

46%Poor

Interactive

HTTPS

No WAF

28d

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+H3

Valid From

20.03.2025

Valid Until

19.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.bitly.combitly.com

SHA-256 Fingerprint

E9:63:90:A4:8D:C5:A1:4D:9B:CB:98:51:BC:91:25:6F:F9:83:F8:50...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

alt-svc

h3=":443"; ma=2592000,h3-29=":443"; ma=2592000

content-length

109649

content-type

text/html; charset=utf-8

date

Thu, 19 Feb 2026 20:59:43 GMT

last-modified

Thu, 19 Feb 2026 19:47:40 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

kck.st

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Typography & Readability

Bitly Display + Bitly Display Regular

66/100

Readability

/30

40/40

16px · LH 1.40

Hierarchy

/20

25/25

3x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Bitly Display

Sans48px

Body Font

Bitly Display Regular

Sans16px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

48px

24px

40px

16px

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

✅ Optimal line spacing: 1.40 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.0x larger than body text.

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

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

⚠️ Cramped layout: 9 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

A/B Testing & Optimization

OptimizelyEnterprise

Experimentation and conversion optimization

Sponsored

Scripts & Styles

15 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(5)mkt-static.bitly.com(3)(2)cdn.cookielaw.org(1)cdn.optimizely.com(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn

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Last analyzed: 19 Feb 2026 at 20:59

Historical Analysis & Change Tracking