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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tom.com

https://tom.com· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

tom.com

Sponsored

Hosting Provider

Midland

IP Address

118.103.150.77

Server Location

🇭🇰 Kwai Chung, Hong Kong

ASN

AS10032

Server

Nginx

Nameservers

b.dnspod.com.c.dnspod.com.a.dnspod.com.

Performance

Page Speed

125 KB

59 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

Infrastructure

Hosting

Midland

Technology Stack

6 Technologies Detected

CSS Frameworks

Analytics

Libraries

Web Servers

SEO Analysis

D44/100

tom.comtom.com

TOM网首页

TOM是国内领先的互联网公司，为全球用户提供全面的最新新闻资讯、邮箱及游戏定制等服务，内容涵盖新闻、娱乐时尚、体坛赛事、汽车科技、母婴生活、健康旅游、商业财经等近30个频道的资讯内容和最新热点。

Title Length6 chars

Recommended: 50-60 chars

Description Length97 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (69/70)

6 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

2 rules

Sponsored

Security Score

71%Good

Static / Informational

HTTPS

No WAF

25d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

09.05.2025

Valid Until

13.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.tom.comtom.com

SHA-256 Fingerprint

2B:02:54:23:6D:DF:8D:B1:C4:C1:87:79:FB:60:99:94:1A:B2:00:56...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-type

text/html

date

Mon, 16 Feb 2026 22:37:27 GMT

etag

W/"69939a6c-d01c"

last-modified

Mon, 16 Feb 2026 22:30:04 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

tommx.tom.com

Domain Information

tom.com

Domain Age

30y 11m

Created

13.03.1995

Expires

08.12.2030

Last Updated

26.06.2025

Registrar

Web Commerce Communications Limited dba WebNic.cc

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

Times New Roman

53/100

Readability

/30

17/40

14px · LH 2.21

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Times New Roman

Body Font

Times New Roman

Serif14px

Contrast Ratio

Reading Comfort

~38 CPL

Needs attention

14px

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

⚠️ Wide line spacing (2.21). Consider 1.4-1.8 for better flow.

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

✅ Clean layout: Consistent left alignment throughout.

Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

Matomo (Piwik)Mid-Market

Google Tag ManagerFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

tom.com(9)track.tom.com(1)hm.baidu.com(1)googletagmanager.com(1)analyzev.oss-cn-beijing.aliyuncs.com(1)

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Last analyzed: 16 Feb 2026 at 22:37

Historical Analysis & Change Tracking