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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104.com.tw

https://104.com.tw· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

104.com.tw

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.18.9.226

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ext-ns2.104.com.tw.ext-ns.104.com.tw.ext-ns3.104.com.tw.

Performance

Page Speed

129 KB

37 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Headless

🖥️ CSR

Decoupled

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Detected API Sources

//static.104.com.tw/104i/js/ap...

Technology Stack

6 Technologies Detected

Analytics

Tag Managers

CDN

SEO Analysis

D47/100

104.com.tw104.com.tw

104人力銀行－不只找工作、幫你找方向的求職徵才平台

104人力銀行提供專業、便利、貼心的求職徵才服務。104 秉持最佳雇主品牌值得被讚揚！每個求職者，應追求更好更棒的理想企業！104 更榮獲 2020 年「國際社會價值協會」頒發「社會投資報酬」SROI 認證 2018 年「工作生活平衡獎」。找工作、求職、企業徵才請上104人力銀行。

Title Length26 chars

Recommended: 50-60 chars

Description Length141 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (1/1)

4 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

92 rules

Sponsored

Security Score

71%Good

Static / Informational

HTTPS

WAF

382d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Gandi

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

05.02.2026

Valid Until

06.03.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.104.com.tw104.com.tw

SHA-256 Fingerprint

44:7D:02:5F:2D:BB:EB:B0:D0:DD:82:78:44:3A:9A:1F:7F:E4:6E:54...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cf-ray🇩🇪 Frankfurt

9cf227b39e9fdc9d-FRA

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-type

text/html

date

Tue, 17 Feb 2026 03:21:31 GMT

last-modified

Tue, 17 Feb 2026 03:17:34 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

104-com-tw.mail.protection.outlook.com

Domain Information

104.com.tw

Domain Age

40y 8m

Created

26.06.1985

Expires

11.07.2029

Last Updated

12.05.2025

Registrar

GANDI SAS

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

Times New Roman

61/100

Readability

/30

30/40

16px · LH --

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Times New Roman

Body Font

Times New Roman

Serif16px

Contrast Ratio

Reading Comfort

Single Family

left aligned

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

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

⚠️ Inconsistent alignment: Mix of left/center/right creates visual noise.

Buy on MyFonts

Business & Marketing Stack

5 Tools Detected

Advanced

Behavior Analytics

HotjarMid-Market

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Quora PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(6)cdn.104.com.tw(4)connect.facebook.net(2)static.hotjar.com(1)static.104.com.tw(1)

Website Identity

104.com.tw

40 years old

GANDI SAS📧 Microsoft 365

Sponsored

Last analyzed: 17 Feb 2026 at 03:21

Historical Analysis & Change Tracking