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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eastday.com

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

Export

eastday.com

Mobile

Sponsored

Hosting Provider

Chinanet SH

IP Address

180.153.21.47

Server Location

🇨🇳 Shanghai, China

ASN

AS4812

Organization

Chinanet SH

Server

Tengine

Nameservers

NEWNS2.eastday.com.NS.eastday.com.NS2.eastday.com.NEWNS.eastday.com.

Performance

Page Speed

6.4 MB

95 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Chinanet SH

Technology Stack

3 Technologies Detected

Libraries

jQueryv3.7.1

UI Components

Swiper

Web Servers

Tengine

SEO Analysis

D52/100

eastday.comeastday.com

东方网 eastday

东方网,上海,新闻,政务,视频,图片,突发,原创,独家,现场,报道,博客,微博,交友,评论,访谈,长三角,财经,体育,娱乐,社会,军事,论坛,聊天,短信,世博

Title Length11 chars

Recommended: 50-60 chars

Description Length79 chars

Recommended: 120-160 chars

Issues (0)

7 issues found

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Security Score

36%Critical

Interactive

HTTPS

No WAF

344d

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/1.1

Valid From

23.12.2025

Valid Until

24.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.eastday.comeastday.com

SHA-256 Fingerprint

36:57:B6:71:C4:DB:F0:03:05:EC:8F:32:E8:05:C8:DF:F9:4C:B6:42...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache, no-store)

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Sat, 14 Feb 2026 03:22:39 GMT

eagleid

b4a3921d17710393594578353e

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

mxbiz1.qq.com

mxbiz2.qq.com

Domain Information

eastday.com

Domain Age

26 years

Created

20.02.2000

Expires

20.02.2026

Last Updated

09.10.2024

Registrar

Xiamen 35.com Information Co., Ltd.

DNSSEC

Not Enabled

Typography & Readability

宋体

36/100

Readability

/30

12/40

12px · LH 1.83

Hierarchy

/20

21/25

3x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

宋体

Sans36px

Body Font

宋体

Sans12px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

36px

30px

12px

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

✅ Strong hierarchy: Headlines are 3.0x larger than body text.

✅ Good performance: Using 1 font families keeps load times fast.

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

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

⚠️ Cramped layout: 39 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Matomo (Piwik)Mid-Market

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

mz3-storage.eastday.com(12)jhelper.ewdcloud.com(4)gl.ewdcloud.com(2)res.wx.qq.com(1)wzamin.wcag.org.cn(1)

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Last analyzed: 14 Feb 2026 at 03:23

Historical Analysis & Change Tracking