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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autohome.com.cn

https://autohome.com.cn· First analyzed 14 Feb 2026· Updated 14 Feb 2026

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autohome.com.cn

$Desktop screenshot of autohome.com.cn$

$Mobile screenshot of autohome.com.cn$

Mobile

Sponsored

Hosting Provider

China United Network Communications Corporation Limited

IP Address

116.181.15.207

Server Location

🇨🇳 Jinrongjie, China

ASN

AS133119

Organization

China United Network Communications Corporation Limited

Server

Nginx

Nameservers

ns3.dnsv5.com.ns4.dnsv5.com.

Performance

Page Speed

1 MB

250 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

JAMstack

⚙️ SSR

Decoupled

Frontend

Framework

Next.js

Styling

Tailwind CSS

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

China United Network Communications Corporation Limited

Detected API Sources

//z.autoimg.cn/api/web/sdk?typ...

Technology Stack

5 Technologies Detected

CSS Frameworks

Meta Frameworks

Web Servers

Analytics

SEO Analysis

D47/100

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汽车之家为您提供最新汽车报价，汽车图片，汽车价格大全，最精彩的汽车新闻、行情、评测、导购内容，是提供信息最快最全的中国汽车网站

Title Length24 chars

Recommended: 50-60 chars

Description Length63 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

7 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

3 rules

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

27d

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

10.02.2025

Valid Until

13.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

autohome.com.cnwww.autohome.com.cn*.cloud.autohome.com.cn*.autoimg.cn*.autohome.com.cn*.data.autohome.com.cn*.mall.autohome.com.cn*.carso.cn+12 more

SHA-256 Fingerprint

95:12:4E:6F:16:75:2B:82:64:B7:25:79:6E:BB:AF:95:7E:72:4B:36...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

280

cache-control

🟡 300s(public, max-age=300)

cdn-address

58.144.241.35

cdn-enterprise

bdy

cdn-res-hit

HIT

Good Warning Issue

Email Infrastructure

iCloud Mail

Score

SPF

DKIM

DMARC

MX Records (3)

mx3.autohome.com.cn

mx2.autohome.com.cn

mx1.autohome.com.cn

Domain Information

autohome.com.cn

DNSSEC

Not Enabled

Typography & Readability

PingFang SC + -apple-system

68/100

Readability

/30

32/40

14px · LH 1.57

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

PingFang SC

Sans

Body Font

-apple-system

Sans14px

Contrast Ratio

Reading Comfort

Dual Sans-Serif

left aligned

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.

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

✅ Protected text on images: Using gradient for readability.

⚠️ Cramped layout: 562 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

24 Resources

Scripts

Styles

Async

Defer

Top Script Sources

z.autoimg.cn(18)x.autoimg.cn(2)

Sponsored

Last analyzed: 14 Feb 2026 at 11:27

Historical Analysis & Change Tracking

autohome.com.cn

汽车之家_看车 买车 用车 换车,省时省心省钱!

汽车之家_看车买车用车换车,省时省心省钱!