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.

Back to Search

xiaohongshu.com

https://xiaohongshu.com· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

xiaohongshu.com

Mobile

Sponsored

Hosting Provider

Tencent Cloud

cloud.tencent.com

IP Address

43.159.24.58

Server Location

🇸🇬 Singapore, Singapore

ASN

AS132203

Organization

Aceville Pte.ltd

Server

TencentEdgeOne

Nameservers

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

Performance

Page Speed

125 KB

104 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

Tencent Cloud

Progressive Web App

Web ManifestApple Touch IconTheme Color

Detected API Sources

https://as.xiaohongshu.com/api...

Technology Stack

2 Technologies Detected

Other

Lottie

CSS Frameworks

Tailwind CSS

SEO Analysis

F29/100

xiaohongshu.comxiaohongshu.com

小红书 - 你的生活兴趣社区

3 亿人的生活经验，都在小红书

Title Length14 chars

Recommended: 50-60 chars

Description Length15 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (53/53)

8 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

16 rules

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

372d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DNSPod, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

21.01.2026

Valid Until

19.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.xiaohongshu.comxiaohongshu.com

SHA-256 Fingerprint

97:75:50:33:4B:B3:34:E1:68:45:00:B2:BE:2E:C6:A8:5C:9C:19:37...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-credentials

true

access-control-allow-methods

GET,OPTIONS

access-control-allow-origin

access-control-max-age

86400

alt-svc

h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-Q050=":443...

content-encoding

📦 Gzip(gzip)

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

xiaohongshu-com.mail.protection.partner.outlook.cn

Domain Information

xiaohongshu.com

Domain Age

14y 2m

Created

25.11.2011

Expires

25.11.2033

Last Updated

05.12.2023

Registrar

DNSPod, Inc.

DNSSEC

Not Enabled

Typography & Readability

system-ui

63/100

Readability

/30

20/40

12px · LH 1.40

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

system-ui

Body Font

system-ui

Sans12px

Contrast Ratio

Reading Comfort

Single Family

left aligned

12px

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

✅ Optimal line spacing: 1.40 ratio ensures comfortable reading.

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

✅ Clean layout: Consistent left alignment throughout.

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Reviews & Social Proof

LooxSMB

Customer reviews and testimonials

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

fe-static.xhscdn.com(14)fe-video-qc.xhscdn.com(2)as.xiaohongshu.com(1)

Website Identity

xiaohongshu.com

14 years old

DNSPod, Inc.

Sponsored

Last analyzed: 12 Feb 2026 at 11:54

Historical Analysis & Change Tracking