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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chinahighlights.com

https://chinahighlights.com· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

chinahighlights.com

Sponsored

Hosting Provider

Alibaba Cloud

alibabacloud.com

IP Address

47.251.8.114

Server Location

🇺🇸 Santa Clara, United States

ASN

AS45102

Organization

Alibaba Cloud - US

Server

OpenResty

Nameservers

pns52.cloudns.net.pns53.cloudns.net.pns54.cloudns.net.pns51.cloudns.net.

Performance

Page Speed

36 requests

Image Optimization

Lazy LoadWebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

Alibaba Cloud

Technology Stack

13 Technologies Detected

Analytics

Advertising

Google Ads Google AdSense Microsoft Advertising

CSS Frameworks

Tag Managers

Reviews

Web Servers

SEO Analysis

A84/100

chinahighlights.comchinahighlights.com

China Highlights | Best-Rated Personalized Travel

Discover China with the award-winning and best-rated tour company for personalized travel in China.

Title Length49 chars

Recommended: 50-60 chars

Description Length99 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

2,981 URLs

robots.txt

77 rules

Sitemap reference found

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

81d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

11.02.2026

Valid Until

12.05.2026

Subject Alternative Names (20)

chinahighlights.comcht.mycht.cnct.mycht.cndata.asiahighlights.comdata.chiangmaiyipengfestival.comdata.chinahighlights.comdata.chinatravel.comdata.globalhighlights.com+12 more

SHA-256 Fingerprint

5F:A6:9F:87:D6:9B:94:AE:23:BD:2E:C4:70:15:F9:09:2B:44:DE:14...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin

cache-control

🟡 12 Hours(max-age=43200)

content-encoding

📦 Gzip(gzip)

content-length

28286

content-type

text/html

date

Thu, 19 Feb 2026 10:19:16 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mxn.mxhichina.com

mxw.mxhichina.com

Domain Information

chinahighlights.com

Domain Age

27y 7m

Created

25.07.1998

Expires

24.07.2034

Last Updated

24.07.2024

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Goudy Old Style + Calibri

78/100

Readability

/30

32/40

19px · LH 1.33

Hierarchy

/20

25/25

2.5x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Goudy Old Style

Sans48px

Body Font

Calibri

Sans19px

Contrast Ratio

Reading Comfort

~33 CPL

Needs attention

48px

34px

21px

19px

✅ Excellent readability: 19px body text is ideal for all devices.

✅ Strong hierarchy: Headlines are 2.5x larger than body text.

✅ Good performance: Using 2 font families keeps load times fast.

✅ Protected text on images: Using text-shadow for readability.

⚠️ Cramped layout: 17 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Microsoft ClarityFree

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Reviews & Social Proof

TrustpilotMid-Market

Customer reviews and testimonials

Sponsored

Scripts & Styles

8 Resources

Scripts

Styles

Async

Defer

Top Script Sources

clarity.ms(2)googletagmanager.com(2)bat.bing.com(2)scripts.clarity.ms(1)widget.trustpilot.com(1)

Website Identity

Facebook X (Twitter)Instagram

Sponsored

Last analyzed: 19 Feb 2026 at 10:19

Historical Analysis & Change Tracking