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

720yun.com

https://720yun.com· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

720yun.com

Sponsored

Hosting Provider

Tencent Cloud

cloud.tencent.com

IP Address

114.117.133.50

Server Location

🇨🇳 Haidian, China

ASN

AS45090

Organization

Tencent Cloud Computing (Beijing) Co., Ltd

Server

Nginx

Performance

Page Speed

3 requests

0–49

50–89

90–100

Architecture Stack

Hybrid

🔀 Hybrid

Frontend

Framework

Next.js

Infrastructure

Hosting

Tencent Cloud

Technology Stack

3 Technologies Detected

Meta Frameworks

Next.js

CSS Frameworks

Tailwind CSS

Web Servers

Nginx

SEO Analysis

F38/100

720yun.com720yun.com

720云VR全景官网-3DVR全景拍摄制作软件平台

720云是技术领先的3DVR全景软件网站，为创作者和企业提供360度VR全景拍摄、VR全景制作、VR全景地图、VR全景图片、VR全景视频等展示、分发、技术支持、内容定制的一站式服务，助力商企提升品牌宣传和营销转化效果。

Title Length25 chars

Recommended: 50-60 chars

Description Length109 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (304/402)

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

22 URLs

robots.txt

2 rules

Allows all crawlers

Sponsored

Security Score

81%Very Good

Static / Informational

HTTPS

No WAF

67d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

21.03.2025

Valid Until

22.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.720yun.com720yun.com

SHA-256 Fingerprint

A7:6D:86:4E:63:35:06:DA:21:D7:7E:12:6C:5E:52:E9:4E:09:71:47...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

content-type

text/html; charset=utf-8

server

nginx

vary

Accept-Encoding

x-cache-status

HIT

x-cache-expired-at

20m 28s

etag

W/"3e5b8-U5zoGbAj4Wmq8WZkKkKVJF1xLb0"

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

720yun.com

Domain Age

12y 2m

Created

26.11.2013

Expires

26.11.2029

Last Updated

24.12.2025

Registrar

Alibaba Cloud Computing (Beijing) Co., Ltd.

DNSSEC

Not Enabled

Typography & Readability

sans-serif

63/100

Readability

/30

30/40

16px · LH --

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

sans-serif

Sans

Body Font

sans-serif

Sans16px

Contrast Ratio

Reading Comfort

~203 CPL

Needs attention

24px

19px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

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

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

❌ Very long lines: ~203 chars/line causes eye strain. Use max-width: 65ch.

✅ Clean layout: Consistent left alignment throughout.

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

static-t.720static.com(18)hmcdn.baidu.com(1)hm.baidu.com(1)

Sponsored

Last analyzed: 13 Feb 2026 at 17:18

Historical Analysis & Change Tracking