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

starwoodhotels.com

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

Export

starwoodhotels.com

Mobile

Sponsored

Hosting Provider

OVHcloud

ovhcloud.com

IP Address

142.44.217.176

Server Location

🇺🇸 Newark, United States

ASN

AS16276

Organization

OVH

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns19.domaincontrol.com.ns20.domaincontrol.com.

Performance

Page Speed

30.3 MB

206 requests

Image Optimization

Lazy LoadWebPAVIFResponsive

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

OVHcloud

CDN

Cloudflare

Detected API Sources

https://player.vimeo.com/api/p...

Technology Stack

13 Technologies Detected

UI Components

Slick Carousel Fancybox

CSS Frameworks

Analytics

Frameworks

Libraries

Other

Fonts

Tag Managers

CDN

Icon Libraries

SEO Analysis

A84/100

starwoodhotels.comstarwoodhotels.com

Starwood Hotels - Global Luxury Hotel Brands

Starwood Hotels is a hotel brand management company that operates the award-winning 1 Hotels, Baccarat Hotels, Treehouse Hotels, and SH Collection properties.

Title Length44 chars

Recommended: 50-60 chars

Description Length158 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

24 URLs

robots.txt

57 rules

Sponsored

Security Score

61%Fair

Interactive

HTTPS

WAF

37d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

24.12.2025

Valid Until

24.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

starwoodhotels.com*.starwoodhotels.com

SHA-256 Fingerprint

70:46:61:88:80:2A:D0:C4:B7:8E:14:02:0E:F3:31:4F:94:2F:C0:02...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

date

Sun, 15 Feb 2026 04:35:44 GMT

content-type

text/html; charset=UTF-8

server

cloudflare

cache-control

🔴 No Cache(must-revalidate, no-cache, private)

x-drupal-dynamic-cache

UNCACHEABLE

content-language

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

mxa-003bff01.gslb.pphosted.com

mxb-003bff01.gslb.pphosted.com

Domain Information

starwoodhotels.com

Domain Age

28y 2m

Created

23.12.1997

Expires

22.12.2026

Last Updated

23.12.2025

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Typography & Readability

Noir + Montserrat

43/100

Readability

/30

30/40

16px · LH --

Hierarchy

/20

15/25

0.94x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

Noir

Sans15px

Body Font

Montserrat

Sans16px

Contrast Ratio

Reading Comfort

~38 CPL

Needs attention

15px

40px

32px

27px

16px

Major Third

Scale

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

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

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

⚠️ Risky: Text appears on background images without overlay protection.

⚠️ Cramped layout: 112 elements lack adequate spacing.

GGoogle Fonts Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(13)googletagmanager.com(2)cdn.cookielaw.org(2)translate.googleapis.com(1)translate.google.com(1)

Website Identity

X (Twitter)

Sponsored

Last analyzed: 15 Feb 2026 at 04:36

Historical Analysis & Change Tracking