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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zumvu.com

https://zumvu.com· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

zumvu.com

Sponsored

Hosting Provider

Sucuri

IP Address

192.124.249.14

Server Location

🇺🇸 Menifee, United States

ASN

AS30148

Organization

Sucuri

Server

Sucuri/Cloudproxy

CDN

Sucuri

WAF

Sucuri

Nameservers

16.sucuridns.com.12.sucuridns.com.17.sucuridns.com.13.sucuridns.com.

Performance

Page Speed

2.1 MB

95 requests

Image Optimization

Lazy LoadWebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Sucuri

CDN

Sucuri

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

10 Technologies Detected

Analytics

Google Analytics

Facebook Pixel Segment

Libraries

UI Components

CSS Frameworks

Icon Libraries

Fonts

Customer Support

Security

SEO Analysis

B70/100

zumvu.comzumvu.com

Digital Marketing Tools, Growth Marketing Platform - Zumvu

Zumvu is an easy to use all-in-one marketing platform that increases website traffic, generation of leads and includes Sales CRM to help grow your business.

Title Length58 chars

Recommended: 50-60 chars

Description Length156 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (63/69)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

28 URLs

robots.txt

104 rules

Sitemap reference found

Allows all crawlers

Sponsored

Security Score

35%Critical

Critical / Transactional

HTTPS

WAF

270d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

16.11.2025

Valid Until

17.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.zumvu.comzumvu.com

SHA-256 Fingerprint

75:DA:8B:3A:A1:EB:A3:F6:D1:E6:DF:0A:08:98:BC:23:35:FC:E6:B2...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=2592000, h3-29=":443"; ma=2592000

content-security-policy

upgrade-insecure-requests;

content-type

text/html; charset=UTF-8

date

Fri, 20 Feb 2026 02:34:28 GMT

server

Sucuri/Cloudproxy

x-content-type-options

nosniff

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

aspmx.l.google.com

Domain Information

zumvu.com

Domain Age

12y 12m

Created

25.02.2013

Expires

25.02.2027

Last Updated

19.09.2025

Registrar

eNom, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Montserrat + sans-serif

63/100

Readability

/30

17/40

14px · LH 1.00

Hierarchy

/20

25/25

4.29x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Montserrat

Sans60px

Body Font

sans-serif

Sans14px

Contrast Ratio

Reading Comfort

~35 CPL

Needs attention

60px

20px

15px

18px

14px

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

⚠️ Tight line spacing (1.00). Consider 1.4-1.6 for better readability.

✅ Strong hierarchy: Headlines are 4.3x larger than body text.

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

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

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

GGoogle Fonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

23 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(6)zumvu.chat(3)connect.facebook.net(2)google-analytics.com(1)gstatic.com(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn Pinterest

Sponsored

Last analyzed: 20 Feb 2026 at 02:35

Historical Analysis & Change Tracking