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

barnesandnoble.com

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

Export

barnesandnoble.com

Mobile

Sponsored

Hosting Provider

Barnes & Noble Inc

IP Address

161.221.74.213

Server Location

🇺🇸 New York, United States

ASN

AS39960

Organization

Barnes & Noble Inc

CDN

Akamai

WAF

Akamai

Nameservers

a1-225.akam.net.a13-64.akam.net.a20-66.akam.net.a22-67.akam.net.+2 more

Performance

Page Speed

788 KB

106 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

CMS

Ghost

Infrastructure

Hosting

Barnes & Noble Inc

CDN

Akamai

Technology Stack

6 Technologies Detected

CSS Frameworks

Frameworks

Meta Frameworks

Analytics

Tag Managers

SEO Analysis

A84/100

barnesandnoble.combarnesandnoble.com

Online Bookstore: Books, NOOK ebooks, Music, Movies & Toys | Barnes...

Barnes & Noble’s online bookstore for books, NOOK ebooks & magazines. Shop music, movies, toys & games, too. Receive free shipping with your Barnes & Noble M...

Title truncated. Description truncated.

Title Length76 chars

Recommended: 50-60 chars

Description Length167 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Sponsored

Security Score

25%Critical

Critical / Transactional

HTTPS

WAF

315d

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

x-xss-protection

1; mode=block

x-content-type-options

nosniff

public-key-pins

pin-sha256="base64+primary==";pin-sha256="base64+backup=="; ...

strict-transport-security

max-age=31536000; includeSubDomains

x-frame-options

SAMEORIGIN

is-session-tracking

false

Good Warning Issue

Typography & Readability

Lato + sans-serif

51/100

Readability

/30

20/40

12px · LH 1.50

Hierarchy

/20

8/25

1.31x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Lato

Sans16px

Body Font

sans-serif

Sans12px

Contrast Ratio

Reading Comfort

~63 CPL

Optimal (45–75)

16px

28px

16px

14px

12px

Minor Second

Scale

❌ Critical: 12px body text is too small. Increase to at least 14px.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

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

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

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

✅ Optimal line length: ~63 characters per line is comfortable to read.

Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Reviews & Social Proof

BazaarvoiceEnterprise

Customer reviews and testimonials

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

js.js-bn.com(7)barnesandnoble.com(3)cdn.cookielaw.org(2)dispatch.barnesandnoble.com(2)gstatic.com(1)

Sponsored

Last analyzed: 11 Feb 2026 at 00:35

Historical Analysis & Change Tracking