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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kugou.com

https://kugou.com· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

kugou.com

Sponsored

Hosting Provider

Chinanet GD

IP Address

183.2.141.58

Server Location

🇨🇳 Guangzhou, China

ASN

AS4134

Organization

Chinanet GD

Server

kws

Nameservers

scorpio.kugou.net.virgo.kugou.net.pisces.kugou.net.

Performance

Page Speed

151 KB

68 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Chinanet GD

Technology Stack

5 Technologies Detected

Analytics

Meta Frameworks

Libraries

CSS Frameworks

SEO Analysis

F17/100

kugou.comkugou.com

酷狗音乐 - 就是歌多！小说相声也很多！

酷狗音乐在线正版音乐网站，为您提供酷狗音乐播放器下载、在线音乐试听下载，提供听书、长音频、频道、听小说和MV播放服务。酷狗音乐，就是歌多！小说相声也很多！场景音乐也很多！

Title Length20 chars

Recommended: 50-60 chars

Description Length86 chars

Recommended: 120-160 chars

Issues (3)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (203/204)
• Missing viewport meta tag - page may not be mobile-friendly

9 issues found

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Security Score

76%Good

Interactive

HTTPS

No WAF

134d

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

01.07.2025

Valid Until

30.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (5)

*.kugou.comkugou.com*.fanxing.kugou.com*.kgimg.com*.service.kugou.com

SHA-256 Fingerprint

2D:74:3C:8E:9E:88:9E:0B:12:7C:44:BD:86:46:E8:F0:9F:EF:33:C7...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age

content-encoding

📦 Gzip(gzip)

content-security-policy

frame-ancestors 'self' *.kugou.com

content-type

text/html; charset=utf-8

date

Mon, 16 Feb 2026 16:18:09 GMT

etag

W/"69933a15-a9136"

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (4)

mx2.kugou.com

mx1.kugou.com

mx3.kugou.com

mx4.kugou.com

Domain Information

kugou.com

Domain Age

22 years

Created

10.02.2004

Expires

10.02.2027

Last Updated

25.09.2025

Registrar

Xiamen 35.com Information Co., Ltd.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

微软雅黑

33/100

Readability

/30

22/40

14px · LH --

Hierarchy

/20

8/25

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

微软雅黑

Sans

Body Font

微软雅黑

Sans14px

Contrast Ratio

Reading Comfort

~42 CPL

Needs attention

26px

14px

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

✅ Good performance: Using 1 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.

⚠️ Cramped layout: 55 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

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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

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

staticssl.kugou.com(9)kugou.com(4)serveraddrweb.kugou.com(2)hm.baidu.com(1)m3ws.kugou.com(1)

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Last analyzed: 16 Feb 2026 at 16:18

Historical Analysis & Change Tracking