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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suning.com

https://suning.com· First analyzed 15 Feb 2026· Updated 15 Feb 2026

Export

suning.com

Mobile

Sponsored

Hosting Provider

China Telecom

IP Address

218.2.112.234

Server Location

🇨🇳 Nanjing, China

ASN

AS4134

Server

volc-dcdn

CDN

Nameservers

dns1.zdnscloud.info.cns1.zdnscloud.net.vns1.zdnscloud.biz.ins1.zdnscloud.com.

Performance

Page Speed

7 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

China Telecom

CDN

Detected API Sources

//res.suning.cn/??project/msIn...

Technology Stack

4 Technologies Detected

Frameworks

Libraries

CSS Frameworks

Analytics

SEO Analysis

F35/100

suning.comsuning.com

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Title Length29 chars

Recommended: 50-60 chars

Description Length131 chars

Recommended: 120-160 chars

Issues (3)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (145/212)
• Missing viewport meta tag - page may not be mobile-friendly

7 issues found

Upgrade to view details

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

185d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

18.07.2025

Valid Until

19.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.suning.comsuning.com

SHA-256 Fingerprint

74:7C:EC:F3:B8:1C:E4:D8:A2:A0:FC:00:05:BD:5C:75:42:C6:85:F1...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age

cache-control

🟡 60s(max-age=60)

connection

keep-alive

content-length

216396

content-type

text/html;charset=UTF-8

date

Sun, 15 Feb 2026 01:11:20 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mx2.zy.suning.com

Domain Information

suning.com

Domain Age

28y 2m

Created

18.12.1997

Expires

17.12.2027

Last Updated

16.12.2025

Registrar

eName Technology Co., Ltd.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

Microsoft Yahei + arial

33/100

Readability

/30

20/40

12px · LH 1.50

Hierarchy

/20

8/25

WCAG

/25

5/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Microsoft Yahei

Sans

Body Font

arial

Sans12px

Contrast Ratio

Reading Comfort

Dual Sans-Serif

left aligned

14px

12px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

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

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

⚠️ Cramped layout: 65 elements lack adequate spacing.

⚠️ Inconsistent alignment: Mix of left/center/right creates visual noise.

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

res.suning.cn(9)sa.suning.cn(3)oss.suning.com(2)iar-web.suning.com(1)dt.suning.com(1)

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Last analyzed: 15 Feb 2026 at 01:12

Historical Analysis & Change Tracking

suning.com

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苏宁易购(Suning.com)-换新到苏宁省钱更省心！