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

vevo.com

https://vevo.com· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

vevo.com

Sponsored

Hosting Provider

Fastly, Inc.

IP Address

151.101.128.92

Server Location

🇨🇦 Montreal, Canada

ASN

AS54113

Organization

Fastly, Inc.

Server

Pepyaka

CDN

Fastly

Nameservers

ns-743.awsdns-28.net.ns-1141.awsdns-14.org.ns-1912.awsdns-47.co.uk.ns-492.awsdns-61.com.

Performance

Page Speed

2.4 MB

97 requests

Image Optimization

Lazy LoadAVIFResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

React

CMS

Wix

Infrastructure

Hosting

Fastly, Inc.

CDN

Fastly

Progressive Web App

Service WorkerApple Touch Icon

Technology Stack

7 Technologies Detected

Frameworks

Libraries

CSS Frameworks

Icon Libraries

Customer Support

Analytics

SEO Analysis

A84/100

vevo.comvevo.com

The World's Leading Music Video Network | Vevo

Vevo is the world’s leading music video network, connecting an ever-growing global audience to high quality music video content for more than a decade.

Title Length46 chars

Recommended: 50-60 chars

Description Length152 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

14 rules

Sitemap reference found

Sponsored

Security Score

46%Poor

Interactive

HTTPS

No WAF

46d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

05.01.2026

Valid Until

05.04.2026

Subject Alternative Names (2)

hq.vevo.comwww.hq.vevo.com

SHA-256 Fingerprint

60:E5:60:FA:6C:E6:B6:5E:9F:2D:0F:5B:89:01:BD:A0:26:20:6A:5A...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

87701

alt-svc

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

cache-control

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

content-encoding

⚡ Brotli(br)

content-language

ru-RU

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

alt3.aspmx.l.google.com

alt1.aspmx.l.google.com

alt4.aspmx.l.google.com

alt2.aspmx.l.google.com

+1 more

Domain Information

vevo.com

Domain Age

23y 10m

Created

09.04.2002

Expires

09.04.2026

Last Updated

05.03.2025

Registrar

Amazon Registrar, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Data Protection Officer mentioned

Typography & Readability

wfont_08392a_c1f9747dda3c4c4889c5132122c1d70a

80/100

Readability

/30

32/40

14px · LH 1.50

Hierarchy

/20

18/25

13.57x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

wfont_08392a_c1f9747dda3c4c4889c5132122c1d70a

Sans190px

Body Font

wfont_08392a_c1f9747dda3c4c4889c5132122c1d70a

Sans14px

Contrast Ratio

Reading Comfort

~44 CPL

Needs attention

190px

93px

14px

⚠️ 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 13.6x larger than body text.

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

✅ 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.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

14 Resources

Scripts

Styles

Async

Defer

Top Script Sources

static.parastorage.com(12)browser.sentry-cdn.com(2)

Website Identity

Facebook X (Twitter)Instagram LinkedIn

Sponsored

Last analyzed: 17 Feb 2026 at 17:20

Historical Analysis & Change Tracking