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

trezor.io

https://trezor.io· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

trezor.io

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.66.137.111

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

lucy.ns.cloudflare.com.jeff.ns.cloudflare.com.

Performance

Page Speed

1.7 MB

78 requests

Image Optimization

Lazy LoadWebPResponsiveCloudflare Images

0–49

50–89

90–100

Architecture Stack

Hybrid

🔀 Hybrid

Frontend

Framework

Next.js

Styling

Tailwind CSS

CMS

Strapi

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

10 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel FullStory

Meta Frameworks

CSS Frameworks

Tag Managers

Reviews

CDN

SEO Analysis

B76/100

trezor.iotrezor.io

Trezor Hardware Wallet (Official) | Bitcoin & Crypto Security

The safest cold storage wallets for crypto security and financial independence. Easily use, store, and protect Bitcoins.

Title Length61 chars

Recommended: 50-60 chars

Description Length120 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

16 rules

Sitemap reference found

Sponsored

A+

Security Score

91%Excellent

Interactive

HTTPS

WAF

51d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

05.01.2026

Valid Until

05.04.2026

Subject Alternative Names (2)

*.trezor.iotrezor.io

SHA-256 Fingerprint

3F:CE:A6:41:84:E7:85:A2:1E:5C:AF:CB:60:07:C9:D8:2E:4A:F6:B4...

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 2 Hours(public, max-age=7200, s-maxage=7200)

cf-cache-status

BYPASS

cf-ray🇩🇪 Frankfurt

9cd3eabf3feadc90-FRA

content-encoding

⚡ Brotli(br)

content-security-policy

base-uri 'self';default-src 'self';frame-ancestors 'none';fo...

content-type

text/html; charset=utf-8

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

alt2.aspmx.l.google.com

aspmx.l.google.com

+1 more

Domain Information

trezor.io

Domain Age

11y 7m

Created

21.07.2014

Expires

21.07.2028

Last Updated

01.03.2025

Registrar

Cloudflare, Inc

DNSSEC

Not Enabled

Privacy & Compliance

Usercentrics

Cookie Consent Banner

Usercentrics

GDPR Indicators

Cookie consent banner detected

CMP: Usercentrics

Typography & Readability

satoshiBoldFont + satoshiRegularFont

71/100

Readability

/30

32/40

14px · LH 1.50

Hierarchy

/20

21/25

5.71x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

satoshiBoldFont

Sans80px

Body Font

satoshiRegularFont

Sans14px

Contrast Ratio

Reading Comfort

Dual Sans-Serif

left aligned

80px

32px

40px

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 5.7x larger than body text.

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

⚠️ Cramped layout: 15 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(19)googletagmanager.com(1)

Website Identity

Facebook X (Twitter)Instagram GitHub TikTok Reddit

Sponsored

Last analyzed: 13 Feb 2026 at 11:17

Historical Analysis & Change Tracking