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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vanityfair.it

https://vanityfair.it· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

vanityfair.it

Sponsored

Hosting Provider

Fastly, Inc.

IP Address

151.101.130.133

Server Location

🇨🇦 Montreal, Canada

ASN

AS54113

Organization

Fastly, Inc.

Server

CloudFront

CDN

CloudFront

Nameservers

ns-836.awsdns-40.net.ns-1116.awsdns-11.org.ns-1935.awsdns-49.co.uk.ns-28.awsdns-03.com.

Performance

Page Speed

1.9 MB

71 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

OpenCart

Technology Stack

7 Technologies Detected

Analytics

Meta Frameworks

CSS Frameworks

Tag Managers

Advertising

CDN

SEO Analysis

A88/100

vanityfair.itvanityfair.it

VanityFair.it - Celebrity, attualità, costume, moda, bellezza, food...

Vanity Fair.it: tutto su celebrity, attualità, costume, moda, bellezza, cinema, musica, tv, benessere, viaggi, food e gossip

Title truncated.

Title Length96 chars

Recommended: 50-60 chars

Description Length124 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

713 URLs

robots.txt

70 rules

Sitemap reference found

Sponsored

Security Score

31%Critical

Interactive

HTTPS

No WAF

336d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

24.12.2025

Valid Until

22.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

vanityfair.it*.vanityfair.it

SHA-256 Fingerprint

5F:EB:7D:FC:B5:4D:92:99:2C:AC:B0:20:24:95:DA:D7:E3:D0:53:BB...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

157

alt-svc

h3=":443"; ma=86400

back-lae-origin-response-start

1771561134733

cache-control

⚪ Custom(stale-while-revalidate=60, stale-if-error=86400, s-maxage=90...)

content-encoding

⚡ Brotli(br)

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)

alt2.aspmx.l.google.com

alt3.aspmx.l.google.com

alt4.aspmx.l.google.com

aspmx.l.google.com

+1 more

Domain Information

vanityfair.it

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Typography & Readability

AdobeGaramondPro + EB Garamond

88/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

25/25

2.62x ratio

WCAG

/25

11/15

Contrast: undefined

Performance

/25

17/20

System fonts

Heading Font

AdobeGaramondPro

Sans42px

Body Font

EB Garamond

Serif16px

Contrast Ratio

Reading Comfort

~44 CPL

Needs attention

42px

22px

34px

21px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.6x 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.

✅ Protected text on images: Using gradient for readability.

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Social Media

Pinterest WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(11)googletagmanager.com(2)globalservices.conde.digital(2)securepubads.g.doubleclick.net(2)vanityfair.it(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn TikTok

Sponsored

Last analyzed: 20 Feb 2026 at 04:21

Historical Analysis & Change Tracking