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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qidian.com

https://qidian.com· First analyzed 18 Feb 2026· Updated 18 Feb 2026

Export

qidian.com

Sponsored

Hosting Provider

Tencent Cloud

cloud.tencent.com

IP Address

129.226.106.13

Server Location

🇭🇰 Hong Kong, Hong Kong

ASN

AS132203

Server

Lego Server

Performance

Page Speed

1.1 MB

102 requests

Image Optimization

Lazy LoadWebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Tencent Cloud

Technology Stack

3 Technologies Detected

Libraries

jQuery

CSS Frameworks

Tailwind CSS

Languages

SEO Analysis

F38/100

qidian.comqidian.com

小说,小说网,最新热门小说-起点中文网_阅文集团旗下网站

起点中文网,最新热门小说网站，提供玄幻小说、武侠小说、原创小说、网游小说、都市小说、言情小说、青春小说、科幻小说等首发小说,最新章节在线阅读。更多精彩尽在起点中文网小说网。

Title Length28 chars

Recommended: 50-60 chars

Description Length86 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

9 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

17 rules

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

31d

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/1.1

Valid From

21.02.2025

Valid Until

21.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.qidian.comqidian.com

SHA-256 Fingerprint

15:E2:3C:67:6C:20:9C:AF:3F:B9:CE:A4:4C:84:40:44:4B:4A:A0:39...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store)

connection

keep-alive

content-length

209

content-type

text/html; charset=utf-8

date

Wed, 18 Feb 2026 09:53:44 GMT

pragma

no-cache

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

Domain Information

qidian.com

Domain Age

24y 8m

Created

11.06.2001

Expires

11.06.2029

Last Updated

23.05.2023

Registrar

DNSPod, Inc.

DNSSEC

Not Enabled

Typography & Readability

PingFangSC-Regular

51/100

Readability

/30

32/40

14px · LH 1.57

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

PingFangSC-Regular

Sans

Body Font

PingFangSC-Regular

Sans14px

Contrast Ratio

Reading Comfort

~150 CPL

Needs attention

16px

14px

16px

14px

Minor Second

Scale

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

✅ Optimal line spacing: 1.57 ratio ensures comfortable reading.

✅ Good performance: Using 1 font families keeps load times fast.

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

❌ Very long lines: ~150 chars/line causes eye strain. Use max-width: 65ch.

⚠️ Cramped layout: 131 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

13 Resources

Scripts

Styles

Async

Defer

Top Script Sources

qdfepccdn.qidian.com(6)hm.baidu.com(1)local(1)turing.captcha.qcloud.com(1)aegis.cdn-go.cn(1)

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Last analyzed: 18 Feb 2026 at 09:54

Historical Analysis & Change Tracking