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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acuityscheduling.com

https://acuityscheduling.com· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

44.239.30.41

Server Location

🇺🇸 Portland, United States

ASN

AS16509

Organization

AWS EC2 (us-west-2)

Server

Apache

Nameservers

ns-1765.awsdns-28.co.uk.ns-61.awsdns-07.com.ns-672.awsdns-20.net.ns-1079.awsdns-06.org.

Performance

Page Speed

117 KB

72 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Amazon Web Services (AWS)

Technology Stack

6 Technologies Detected

Analytics

Libraries

CSS Frameworks

Tag Managers

Web Servers

SEO Analysis

B76/100

acuityscheduling.comacuityscheduling.com

Acuity Scheduling: Online Booking & Appointment Scheduling Software

Acuity Scheduling is an appointment booking software and a scheduling app, offering scheduling automation and full customization. Start a free trial today!

Title Length67 chars

Recommended: 50-60 chars

Description Length155 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

163 URLs

robots.txt

21 rules

Sponsored

Security Score

76%Good

Interactive

HTTPS

No WAF

108d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

08.05.2025

Valid Until

01.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (6)

acuityscheduling.com*.acuityscheduling.com*.as.mesquarespacescheduling.com*.squarespacescheduling.comas.me

SHA-256 Fingerprint

D5:CE:06:57:33:20:0E:54:44:C8:0A:15:86:B3:C5:4F:C6:6C:D7:34...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-length

14623

content-security-policy

frame-ancestors 'self'

content-type

text/html; charset=UTF-8

date

Fri, 13 Feb 2026 09:38:40 GMT

Good Warning Issue

Email Infrastructure

Google Workspace

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

aspmx.l.google.com

alt3.aspmx.l.google.com

alt1.aspmx.l.google.com

alt4.aspmx.l.google.com

+1 more

Domain Information

acuityscheduling.com

Domain Age

19y 1m

Created

15.01.2007

Expires

15.01.2028

Last Updated

14.12.2025

Registrar

MarkMonitor Inc.

DNSSEC

Not Enabled

Privacy & Compliance

TrustArc

Cookie Consent Banner

TrustArc

GDPR Indicators

Cookie consent banner detected

CMP: TrustArc

Typography & Readability

Clarkson-Serif + Clarkson

64/100

Readability

/30

40/40

16px · LH 1.60

Hierarchy

/20

21/25

2.5x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Clarkson-Serif

Sans40px

Body Font

Clarkson

Sans16px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

40px

14px

16px

12px

16px

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

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.5x larger than body text.

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

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

⚠️ Cramped layout: 28 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

AmplitudeMid-Market

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

TrustArcEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

9 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cdn-marketing.acuityscheduling.com(3)googletagmanager.com(2)consent.trustarc.com(2)cdn.amplitude.com(1)

Website Identity

acuityscheduling.com

19 years old

MarkMonitor Inc.📧 Google Workspace

Social Profiles

Facebook Instagram LinkedIn Pinterest

Sponsored

Last analyzed: 13 Feb 2026 at 09:38

Historical Analysis & Change Tracking