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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artsy.net

https://artsy.net· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

artsy.net

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.66.132.253

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

toby.ns.cloudflare.com.lily.ns.cloudflare.com.

Performance

Page Speed

4 KB

92 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

8 Technologies Detected

Analytics

CSS Frameworks

Icon Libraries

CDN

Frameworks

Security

SEO Analysis

B78/100

artsy.netartsy.net

Artsy — Discover and Buy Fine Art

Artsy is the world’s largest online art marketplace. Browse over 1 million artworks by iconic and emerging artists from 4000+ galleries and top auction houses.

Title Length33 chars

Recommended: 50-60 chars

Description Length159 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (35/35)

2 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

26 rules

Sitemap reference found

Sponsored

Security Score

71%Good

Interactive

HTTPS

WAF

71d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

26.01.2026

Valid Until

26.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

artsy.net*.artsy.net

SHA-256 Fingerprint

3D:B5:49:B4:62:00:16:9F:3E:86:F1:30:03:CE:D5:EE:8A:B7:8D:0E...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

date

Fri, 13 Feb 2026 03:01:40 GMT

content-type

text/html; charset=utf-8

x-powered-by

Express

strict-transport-security

max-age=15724800; includeSubDomains

x-frame-options

SAMEORIGIN

x-request-id

e445130568a3253569959967dc6cba48

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

aspmx2.googlemail.com

aspmx.l.google.com

aspmx3.googlemail.com

alt2.aspmx.l.google.com

+1 more

Domain Information

artsy.net

Domain Age

27y 7m

Created

07.07.1998

Expires

06.07.2026

Last Updated

06.07.2025

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Data Protection Officer mentioned

Typography & Readability

Helvetica Neue

81/100

Readability

/30

40/40

16px · LH 1.63

Hierarchy

/20

18/25

2.5x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Helvetica Neue

Sans40px

Body Font

Helvetica Neue

Sans16px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

40px

26px

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

✅ Optimal line spacing: 1.62 ratio ensures comfortable reading.

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

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

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

⚠️ Cramped layout: 9 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

SegmentEnterprise

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

14 Resources

Scripts

Styles

Async

Defer

Top Script Sources

d1s2w0upia4e9w.cloudfront.net(11)cdn.segment.com(1)cdn.sift.com(1)

Website Identity

artsy.net

27 years old

GoDaddy.com, LLC📧 Google Workspace

Social Profiles

Facebook X (Twitter)Instagram LinkedIn TikTok Pinterest

Sponsored

Last analyzed: 13 Feb 2026 at 03:02

Historical Analysis & Change Tracking