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

acs.org

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

Export

acs.org

Mobile

Sponsored

Hosting Provider

Incapsula Inc

IP Address

45.60.77.135

Server Location

🇺🇸 New York, United States

ASN

AS19551

Organization

Incapsula Inc

Nameservers

dns4.g01.ns1global.org.dns3.g01.ns1global.org.dns2.g01.ns1global.org.dns1.g01.ns1global.org.

Performance

Page Speed

1.7 MB

97 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Adobe Experience Manager

Technology Stack

9 Technologies Detected

CSS Frameworks

Analytics

Advertising

Google Ads LinkedIn Ads

Libraries

jQuery

UI Components

Owl Carousel

Customer Support

Zendesk

SEO Analysis

D58/100

acs.orgacs.org

American Chemical Society

ACS is one of the world’s largest scientific societies and the premier home of chemistry professionals. Find career opportunities, educational resources, pro...

Description truncated.

Title Length25 chars

Recommended: 50-60 chars

Description Length194 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (23/34)

5 issues found

Upgrade to view details

Sponsored

Security Score

26%Critical

Interactive

HTTPS

WAF

162d

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)

content-length

212

content-type

text/html

x-iinfo

4-12622275-0 0NNN RT(1770765149363 14) q(0 -1 -1 0) r(0 -1) ...

set-cookie

visid_incap_2092311

Good Warning Issue

Typography & Readability

acs-clarity + Helvetica

81/100

Readability

/30

40/40

16px · LH 1.70

Hierarchy

/20

18/25

2.75x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

acs-clarity

Sans44px

Body Font

Helvetica

Sans16px

Contrast Ratio

Reading Comfort

~53 CPL

Optimal (45–75)

44px

34px

13px

16px

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

✅ Optimal line spacing: 1.70 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.8x larger than body text.

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

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

✅ Protected text on images: Using gradient for readability.

Buy on MyFonts

Business & Marketing Stack

8 Tools Detected

Enterprise

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

ContentsquareEnterprise

User behavior and product analytics

Advertising

LinkedIn AdsEnterprise

AdRollMid-Market

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

OsanoMid-Market

Cookie consent and privacy compliance tools

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

28 Resources

Scripts

Styles

Async

Defer

Top Script Sources

assets.adobedtm.com(7)googletagmanager.com(3)youtube.com(2)s.adroll.com(2)cdnssl.clicktale.net(1)

Website Identity

acs.org

Sponsored

Last analyzed: 10 Feb 2026 at 23:12

Historical Analysis & Change Tracking