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

discogs.com

https://discogs.com· First analyzed 11 Feb 2026· Updated 11 Feb 2026

Export

discogs.com

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

50.112.250.118

Server Location

🇺🇸 Portland, United States

ASN

AS16509

Organization

AWS EC2 (us-west-2)

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns-1232.awsdns-26.org.ns-1836.awsdns-37.co.uk.ns-466.awsdns-58.com.ns-591.awsdns-09.net.

Performance

Page Speed

1.3 MB

67 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Amazon Web Services (AWS)

CDN

Cloudflare

Technology Stack

10 Technologies Detected

Analytics

Libraries

Other

UI Components

CSS Frameworks

Tag Managers

CDN

Security

SEO Analysis

B72/100

discogs.comdiscogs.com

Discogs - Music Database and Marketplace

Discover music on Discogs, the largest online music database. Buy and sell music with collectors in the Marketplace.

Title Length40 chars

Recommended: 50-60 chars

Description Length116 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Sponsored

Security Score

61%Fair

Interactive

HTTPS

WAF

80d

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cf-cache-status

DYNAMIC

cf-ray🇩🇪 Frankfurt

9cc1f22afe912eec-FRA

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=utf-8

date

Wed, 11 Feb 2026 06:56:22 GMT

Good Warning Issue

Typography & Readability

Helvetica Neue

57/100

Readability

/30

32/40

24px · LH 1.25

Hierarchy

/20

15/25

0.88x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Helvetica Neue

Sans21px

Body Font

Helvetica Neue

Sans24px

Contrast Ratio

Reading Comfort

~65 CPL

Optimal (45–75)

21px

36px

15px

24px

Minor Second

Scale

✅ Excellent readability: 24px body text is ideal for all devices.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

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

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

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

✅ Optimal line length: ~64 characters per line is comfortable to read.

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

17 Resources

Scripts

Styles

Async

Defer

Top Script Sources

st.discogs.com(4)discogs.com(3)eu.customerioforms.com(1)googletagmanager.com(1)cdn.cookielaw.org(1)

Website Identity

discogs.com

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Last analyzed: 11 Feb 2026 at 06:56

Historical Analysis & Change Tracking