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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eufy.com

https://eufy.com· First analyzed 25 Apr 2026· Updated 25 Apr 2026

Export

eufy.com

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

15.197.167.90

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Montreal, Canada

ASN

AS16509

Organization

AWS Global Accelerator (GLOBAL)

Server

Netlify

Nameservers

pdns03.domaincontrol.com.pdns04.domaincontrol.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.5 s10%

Speed Index

2.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

11.4 MB

250 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Hybrid

⚡ SSG

Frontend

Framework

Next.js

Styling

Tailwind CSS

CMS

Shopify

Infrastructure

Platform

Netlify

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

19 Technologies Detected

Advertising

Google Ads Twitter Ads LinkedIn Ads TikTok Pixel Microsoft Advertising Criteo

Analytics

Payments

Meta Frameworks

CSS Frameworks

Tag Managers

Email Marketing

Other

Reviews

Platforms

SEO Analysis

B73/100

Meta Tags11/15

Content10/12

Headings8/8

Technical22/25

E-E-A-T2/7

Images2/7

Links5/5

URL5/5

Social4/5

Freshness0/4

Mobile1/4

Indexability3/3

eufy.comeufy.com

eufy - Built with Care | Home Security System & Robovacs - eufy US

eufy has developed a new generation of easy-to-use smart home devices that are designed to enhance your life at home.

Title Length66 chars

Recommended: 50-60 chars (~406px / 580px)

Description Length118 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (126/211) — critical for accessibility and SEO

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

5 URLs

5 sub-sitemaps

robots.txt

124 rules

Sitemap reference found

Local SEO

Local Search Readiness

29/100

Needs Work

9 8 1

Sponsored

AI & LLM Readiness

F38/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

1/25

Citation

10/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:2%

Words:4,476

Token eff.:Poor Structure

Structured Data

1 JSON-LD

sameAs entity links

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

AI readiness recommendation preview...

Upgrade to view recommendations

Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

62/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

10/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

5/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

12/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

9/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

6/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 recommendations

•Accessibility recommendation preview...

Upgrade to view recommendations

Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

51/100

1.18 g

CO₂e / view

11.4 MB

Page Weight

Cleaner Than

New Visitor

1.34 g

Returning (cached)

672 mg

Annual (10K/mo)

141.2 kg

Emission Segments

Data Center

58 mg

Network

346 mg

Device

773 mg

Resource Breakdown

JavaScript

2.2 MB

Images

8.4 MB

CSS

432.0 KB

HTML

244.5 KB

Other

79.8 KB

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

5 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

65%Fair

Critical / Transactional

HTTPS

No WAF

30d

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

25.02.2026

Valid Until

26.05.2026

Subject Alternative Names (7)

eufy.comeufylife.comrelease.eufy.comsupport.eufylife.comuat.eufy.comwww.eufy.comwww.eufylife.com

SHA-256 Fingerprint

C8:F3:47:08:A4:8D:86:2B:39:EC:B0:13:18:3F:2E:0A:7E:D4:DE:86...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

103

cache-control

🟡 0s(public,max-age=0,must-revalidate)

cache-status

"Netlify Durable"; hit; ttl=16, "Next.js"; fwd=miss, "Netlif...

content-encoding

⚡ Brotli(br)

content-security-policy

block-all-mixed-content; frame-ancestors 'self' https://payl...

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

aspmx2.googlemail.com

alt1.aspmx.l.google.com

aspmx3.googlemail.com

alt2.aspmx.l.google.com

+1 more

Domain Information

eufy.com

Domain Age

22y 8m

Created

26.08.2003

Expires

26.08.2027

Last Updated

21.08.2024

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

70/100

Mobile Friendly3 breakpoints

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width, initial-scale=1, viewport-fit=cover, user-scalable=no, maximum-scale=1.0, minimum-scale=1.0

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

MontForAnker

WCAG Partial

73/100

Readability

/30

20/30

14px · LH 1.50

Hierarchy

/20

17/20

4.57x ratio · ✓ H1→H6

WCAG

/25

16/25

1:1 min contrast

Performance

/25

20/25

1 font · 3 req

Heading Font

MontForAnker

Sans64px

Body Font

MontForAnker

Sans14px

Contrast Ratio

1:1

40 issues

Reading Comfort

~39 CPL

Narrow lines

64px

36px

18px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 40 elements below WCAG AA threshold (min 1.0:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 4.6x larger than body text.

⚠️ Fluid type without rem: clamp() detected but missing rem units. May fail WCAG 1.4.4 zoom test.

Buy on MyFontsFluid Type

Color Palette

11 unique colors

14.38:1 AAA Light

#ffffff

Background· 19.9%

#2b2a25

Text· 6.3%

#050a0a

Background· 16%

#c3f4fe

Accent· 9.1%

#091c23

Primary· 6.2%

#4e89a7

Secondary· 5.7%

#a1e2f4

Accent· 5.3%

#c8dee4

Secondary· 3.6%

Business & Marketing Stack

4 Tools Detected

Enterprise

Marketing Automation

KlaviyoE-commerce

Email marketing and automation platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

A/B Testing & Optimization

VWO (Visual Website Optimizer)Mid-Market

Experimentation and conversion optimization

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(20)

Website Identity

eufy

Corporation

support@eufy.com

1-800-988-7973?ref=footer

www.eufy.com/

22 years old

Location detected: 🇨🇦 Canadavia ip

GoDaddy.com, LLC📧 Google Workspaceen-US

Social Profiles

Facebook X (Twitter)Instagram

Sponsored

Last analyzed: 25 Apr 2026 at 22:40

Historical Analysis & Change Tracking