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

acm.org

https://acm.org· First analyzed 10 Feb 2026· Updated 10 Feb 2026

Export

acm.org

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.17.78.30

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

skip.ns.cloudflare.com.olga.ns.cloudflare.com.

Performance

Page Speed

11.6 MB

110 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Substack

Technology Stack

11 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Advertising

LinkedIn Ads Microsoft Advertising

UI Components

Other

CSS Frameworks

Icon Libraries

Fonts

Tag Managers

CDN

SEO Analysis

D47/100

acm.orgacm.org

Association for Computing Machinery

No description available for this page.

Title Length35 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description - important for click-through rates
• Missing H1 tag - every page should have one H1

6 issues found

Upgrade to view details

Sponsored

Security Score

41%Poor

Interactive

HTTPS

WAF

35d

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

date

Tue, 10 Feb 2026 23:34:17 GMT

content-type

text/html;charset=UTF-8

content-encoding

📦 Gzip(gzip)

set-cookie

SERVERID

vary

Origin, Accept-Encoding

strict-transport-security

max-age=31536000; includeSubDomains

Good Warning Issue

Typography & Readability

Roboto Condensed + sans-serif

50/100

Readability

/30

20/40

13px · LH 1.40

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

17/20

System fonts

Heading Font

Roboto Condensed

Sans

Body Font

sans-serif

Sans13px

Contrast Ratio

Reading Comfort

~93 CPL

Needs attention

24px

13px

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

✅ Optimal line spacing: 1.40 ratio ensures comfortable reading.

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

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

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

⚠️ Wide lines: ~93 chars/line. Consider max-width for better reading flow.

GGoogle Fonts

Business & Marketing Stack

4 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

LinkedIn AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(8)local(5)consent.cookiebot.com(2)s.swiftypecdn.com(1)snap.licdn.com(1)

Website Identity

acm.org

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Last analyzed: 10 Feb 2026 at 23:34

Historical Analysis & Change Tracking