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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basketball-reference.com

https://basketball-reference.com· First analyzed 18 Feb 2026· Updated 18 Feb 2026

Export

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.18.6.178

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

vivienne.ns.cloudflare.com.chase.ns.cloudflare.com.

Performance

Page Speed

192 KB

55 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

HubSpot CMS

Technology Stack

7 Technologies Detected

Analytics

Other

CSS Frameworks

Tag Managers

Marketing

CDN

SEO Analysis

B78/100

basketball-reference.combasketball-reference.com

Basketball Statistics & History of Every Team & NBA and WNBA Player...

No description available for this page.

Title truncated.

Title Length95 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description - important for click-through rates

2 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

33 rules

Allows all crawlers

Sponsored

Security Score

41%Poor

Interactive

HTTPS

WAF

36d

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

26.12.2025

Valid Until

26.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

basketball-reference.com*.basketball-reference.com

SHA-256 Fingerprint

AC:51:0A:E0:09:07:80:B3:F5:76:33:E7:16:50:BD:11:9F:15:1D:FB...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

497

cf-cache-status

HIT

cf-ray🇩🇪 Frankfurt

9cf94c1c1c3adcbd-FRA

content-encoding

📦 Gzip(gzip)

content-type

text/html

date

Wed, 18 Feb 2026 00:09:43 GMT

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

alt1.aspmx.l.google.com

aspmx2.googlemail.com

aspmx.l.google.com

aspmx3.googlemail.com

+1 more

Domain Information

basketball-reference.com

Domain Age

25y 2m

Created

03.12.2000

Expires

03.12.2026

Last Updated

29.10.2025

Registrar

Amazon Registrar, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

Typography & Readability

Helvetica Neue + Helvetica

82/100

Readability

/30

32/40

16px · LH 1.25

Hierarchy

/20

15/25

0.88x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Helvetica Neue

Sans14px

Body Font

Helvetica

Sans16px

Contrast Ratio

Reading Comfort

Dual Sans-Serif

left aligned

14px

25px

16px

Major Third

Scale

✅ Excellent readability: 16px 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).

✅ Clean layout: Consistent left alignment throughout.

Business & Marketing Stack

6 Tools Detected

Enterprise

CRM Systems

HubSpotMid-Market

Customer Relationship Management platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OsanoMid-Market

CookiebotMid-Market

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(3)js.hubspot.com(1)cdn.ssref.net(1)cmp.osano.com(1)js.hs-scripts.com(1)

Website Identity

basketball-reference.com

25 years old

Amazon Registrar, Inc.📧 Google Workspace

Social Profiles

Facebook Instagram LinkedIn YouTube TikTok Reddit Threads Bluesky

Sponsored

Last analyzed: 18 Feb 2026 at 00:09

Historical Analysis & Change Tracking