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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hilton.com

https://hilton.com· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

hilton.com

Mobile

Sponsored

Hosting Provider

Hilton Worldwide Holdings Inc

IP Address

167.187.200.23

Server Location

🇺🇸 Cleveland, United States

ASN

AS26529

Organization

Hilton Worldwide Holdings Inc

Server

AkamaiNetStorage

Nameservers

use1.akam.net.ns1-7.akam.net.eur6.akam.net.asia9.akam.net.+4 more

Performance

Page Speed

698 KB

222 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Hilton Worldwide Holdings Inc

Technology Stack

10 Technologies Detected

Advertising

Google Ads LinkedIn Ads Pinterest Tag Snapchat Pixel Microsoft Advertising Taboola

Analytics

CSS Frameworks

CDN

SEO Analysis

F35/100

hilton.comhilton.com

Hilton Page Reference Code

No description available for this page.

Title Length26 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description - important for click-through rates
• Many images missing alt text (18/19)

7 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

77 rules

Sitemap reference found

Sponsored

Security Score

71%Good

Static / Informational

HTTPS

WAF

176d

Certificate Details

Type

Extended Validation (EV)

Certificate Authority

DigiCert Inc

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

14.08.2025

Valid Until

14.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.hilton.comhilton.com

SHA-256 Fingerprint

3F:83:14:09:FC:6B:90:0C:0D:CE:0D:A6:DF:E7:73:84:CC:6B:93:A7...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 4 Hours(max-age=17815)

content-encoding

📦 Gzip(gzip)

content-type

text/html

date

Thu, 19 Feb 2026 09:10:53 GMT

etag

"48227235ce50ef0e9ea81d15c7a2cb44:1709306473.075995"

server

AkamaiNetStorage

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

hilton-com.mail.protection.outlook.com

Domain Information

hilton.com

Domain Age

31y 3m

Created

23.11.1994

Expires

22.11.2026

Last Updated

21.10.2025

Registrar

MarkMonitor Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

Arial

73/100

Readability

/30

32/40

24px · LH 1.33

Hierarchy

/20

18/25

2x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

Arial

Sans48px

Body Font

Arial

Sans24px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

48px

24px

✅ Excellent readability: 24px body text is ideal for all devices.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

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

Buy on MyFonts

Business & Marketing Stack

8 Tools Detected

Enterprise

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

LinkedIn AdsEnterprise

Pinterest AdsMid-Market

Microsoft AdsEnterprise

TaboolaMid-Market

Snapchat PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cdn.taboola.com(3)s.pinimg.com(2)rules.quantcount.com(2)connect.facebook.net(2)s.yimg.com(1)

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Last analyzed: 19 Feb 2026 at 09:11

Historical Analysis & Change Tracking