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

bjx.com.cn

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

Export

bjx.com.cn

Mobile

Sponsored

Hosting Provider

Beijing Topnew Info&Tech co., LTD.

IP Address

114.113.145.103

Server Location

🇨🇳 Beijing, China

ASN

AS4808

Organization

Beijing Topnew Info&Tech co., LTD.

Server

Nginx

Nameservers

f1g1ns1.dnspod.net.f1g1ns2.dnspod.net.

Performance

Page Speed

7 MB

155 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Beijing Topnew Info&Tech co., LTD.

Technology Stack

3 Technologies Detected

Libraries

jQuery

CSS Frameworks

Tailwind CSS

Web Servers

Nginx

SEO Analysis

F31/100

bjx.com.cnbjx.com.cn

电力-北极星电力网-电力门户网站

北极星电力网创立于1999年12月，一直专注于电力领域，为电力行业人士提供电力行业资讯、政策解读、技术交流、人才招聘和电子商务等服务。

Title Length16 chars

Recommended: 50-60 chars

Description Length67 chars

Recommended: 120-160 chars

Issues (3)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (74/108)
• Missing viewport meta tag - page may not be mobile-friendly

8 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

2 rules

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

359d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

09.02.2026

Valid Until

08.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.bjx.com.cnbjx.com.cn

SHA-256 Fingerprint

97:12:EA:A0:99:80:71:99:3F:6A:FA:D3:1B:97:FC:9A:63:39:0D:65...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache, no-store, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Sat, 14 Feb 2026 03:14:28 GMT

expires

pragma

no-cache

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mx.ym.163.com

Domain Information

bjx.com.cn

DNSSEC

Not Enabled

Typography & Readability

Helvetica Neue

60/100

Readability

/30

32/40

14px · LH 1.43

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Helvetica Neue

Body Font

Helvetica Neue

Sans14px

Contrast Ratio

Reading Comfort

~127 CPL

Needs attention

14px

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.43 ratio ensures comfortable reading.

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

❌ Very long lines: ~127 chars/line causes eye strain. Use max-width: 65ch.

⚠️ Cramped layout: 80 elements lack adequate spacing.

✅ 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

13 Resources

Scripts

Styles

Async

Defer

Top Script Sources

newsstatic.bjx.com.cn(7)hm.baidu.com(1)userstatic.bjx.com.cn(1)img.mybjx.net(1)

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Last analyzed: 14 Feb 2026 at 03:15

Historical Analysis & Change Tracking