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

brave.app

https://brave.app· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

brave.app

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

188.114.96.3

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

CloudFlare, Inc.

Server

AmazonS3

CDN

CloudFront

Nameservers

kim.ns.cloudflare.com.chip.ns.cloudflare.com.

Performance

Page Speed

899 KB

57 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Tailwind CSS

Infrastructure

Hosting

Cloudflare

CDN

CloudFront

Technology Stack

3 Technologies Detected

Other

Lottie

CSS Frameworks

Tailwind CSS

Analytics

Matomo

SEO Analysis

A84/100

brave.appbrave.app

The browser that puts you first | Brave

The Brave browser is a fast, private and secure web browser for PC, Mac and mobile. Download now to enjoy a faster ad-free browsing experience that saves dat...

Description truncated.

Title Length39 chars

Recommended: 50-60 chars

Description Length206 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

2 rules

Sitemap reference found

Allows all crawlers

Sponsored

Security Score

89%Very Good

Interactive

HTTPS

WAF

242d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

20.09.2025

Valid Until

19.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (3)

brave.comblog.brave.comwww.brave.com

SHA-256 Fingerprint

2D:74:16:7E:67:5E:02:23:F6:54:DF:53:DA:E4:29:91:17:EA:7C:DC...

Upgrade to view header details

HTTP Headers

Developer Console

age

58276

alt-svc

h3=":443"; ma=86400

content-encoding

⚡ Brotli(br)

content-security-policy

connect-src 'self' https://search.brave.com https://newslett...

content-type

text/html

cross-origin-opener-policy

same-origin

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

Domain Information

brave.app

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Right to erasure referenced

Typography & Readability

FlechaM + Inter Variable

81/100

Readability

/30

40/40

16px · LH 1.60

Hierarchy

/20

21/25

7.5x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

FlechaM

Sans120px

Body Font

Inter Variable

Sans16px

Contrast Ratio

Reading Comfort

~33 CPL

Needs attention

120px

70px

30px

16px

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

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 7.5x larger than body text.

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

✅ Protected text on images: Using gradient for readability.

⚠️ Cramped layout: 63 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Matomo (Piwik)Mid-Market

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(17)

Website Identity

brave.app

Social Profiles

Facebook X (Twitter)GitHub Mastodon Reddit Bluesky

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Last analyzed: 19 Feb 2026 at 16:47

Historical Analysis & Change Tracking