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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trekbikes.com

https://trekbikes.com· First analyzed 15 Feb 2026· Updated 15 Feb 2026

Export

trekbikes.com

Mobile

Sponsored

Hosting Provider

Microsoft Azure

azure.microsoft.com

IP Address

52.167.31.57

Server Location

🇺🇸 Boydton, United States

ASN

AS8075

Organization

Microsoft Azure Cloud (eastus2)

CDN

Nameservers

ha4.markmonitor.zone.ha2.markmonitor.zone.ha1.markmonitor.zone.ha3.markmonitor.zone.

Performance

Page Speed

7.8 MB

224 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Tailwind CSS

Infrastructure

Hosting

Microsoft Azure

CDN

Technology Stack

15 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Microsoft Clarity

Advertising

Google Ads TikTok Pixel Microsoft Advertising

Libraries

Frameworks

Other

CSS Frameworks

Tag Managers

Other

Customer Support

SEO Analysis

C64/100

trekbikes.comtrekbikes.com

Trek Bikes – Maailman parhaat pyörät ja varusteet - Trek Bikes (FI)

Sähköpyöriä, maastopyöriä, maantiepyöriä, gravel-pyöriä, kaupunkipyöriä – valmistamme verta...

Description truncated.

Title Length67 chars

Recommended: 50-60 chars

Description Length226 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (39/47)

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

254 URLs

robots.txt

9 rules

Sitemap reference found

Sponsored

Security Score

76%Good

Interactive

HTTPS

No WAF

58d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

28.10.2025

Valid Until

14.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.trekbikes.com

SHA-256 Fingerprint

15:C0:D1:44:C4:52:8B:FE:CA:BF:1C:F7:89:15:9A:0B:89:70:1A:D7...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache, no-store, max-age=0, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-language

fi-FI

content-security-policy

frame-ancestors 'self' *.trekbikes.com

content-type

text/html;charset=UTF-8

date

Sun, 15 Feb 2026 04:33:15 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

trekbikes-com.mail.protection.outlook.com

Domain Information

trekbikes.com

Domain Age

30y 5m

Created

12.09.1995

Expires

11.09.2027

Last Updated

10.08.2025

Registrar

MarkMonitor Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Legitimate interest basis mentioned

Typography & Readability

arial + sans-serif

75/100

Readability

/30

32/40

15px · LH 1.60

Hierarchy

/20

18/25

2.13x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

17/20

System fonts

Heading Font

arial

Sans32px

Body Font

sans-serif

Sans15px

Contrast Ratio

Reading Comfort

~41 CPL

Needs attention

32px

18px

40px

15px

Augmented Fourth

Scale

⚠️ Small text: 15px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.1x larger than body text.

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

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

⚠️ Cramped layout: 56 elements lack adequate spacing.

Business & Marketing Stack

6 Tools Detected

Enterprise

Behavior Analytics

Microsoft ClarityFree

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(7)clarity.ms(7)scripts.clarity.ms(2)google-analytics.com(2)vcc-assets.8x8.com(1)

Website Identity

Facebook X (Twitter)Instagram YouTube TikTok

Sponsored

Last analyzed: 15 Feb 2026 at 04:33

Historical Analysis & Change Tracking