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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hotwire.com

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

Export

hotwire.com

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Hosting Provider

Akamai International, BV

IP Address

23.45.108.20

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS16625

Organization

Akamai International, BV

CDN

Akamai

WAF

Akamai

Nameservers

use1.akam.net.usc1.akam.net.ns1-52.akam.net.ns1-199.akam.net.+4 more

Performance

Page Speed

1.3 MB

55 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Akamai International, BV

CDN

Akamai

Technology Stack

4 Technologies Detected

CSS Frameworks

Analytics

Tag Managers

Customer Support

SEO Analysis

D58/100

hotwire.comhotwire.com

Cheap Hotels, Cars, & Flights | Last Minute Travel Deals | Hotwire

Find the best deals on the cheapest hotels, cars & flights with Hotwire. Save big on hotels and cars with Hotwire Hot Rates.

Title Length66 chars

Recommended: 50-60 chars

Description Length124 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

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Crawlability

Sitemap

Type: standard

11 URLs

robots.txt

36 rules

Sponsored

Security Score

26%Critical

Interactive

HTTPS

WAF

206d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

15.09.2025

Valid Until

14.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (17)

www.hotwire.comwww.intl.hotwireadmin.comwww.hotwirepartnercentral.comwww.hotwireadmin.comvacation.hotwire.comstatic.qa.hotwire.commerch.hotwire.comme.qa.hotwire.com+9 more

SHA-256 Fingerprint

1A:17:6C:68:B9:DE:9E:62:F1:73:F3:55:EB:7E:8C:78:48:39:DA:E4...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

ak_debug_origin_header

cache-control

🔴 No Cache(max-age=0, no-cache, no-store)

content-encoding

📦 Gzip(gzip)

content-length

3757

content-type

text/html; charset=utf-8

date

Fri, 20 Feb 2026 08:50:10 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mxb.expediagroup.com

mxa.expediagroup.com

Domain Information

hotwire.com

Domain Age

31y 5m

Created

29.09.1994

Expires

28.09.2026

Last Updated

24.09.2025

Registrar

CSC Corporate Domains, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Typography & Readability

Lucida Grande + -apple-system

50/100

Readability

/30

12/40

11px · LH 1.27

Hierarchy

/20

15/25

1.45x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Lucida Grande

Sans16px

Body Font

-apple-system

Sans11px

Contrast Ratio

Reading Comfort

~56 CPL

Optimal (45–75)

16px

11px

❌ Critical: 11px body text is too small. Increase to at least 14px.

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

✅ Good performance: Using 1 font families keeps load times fast.

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

✅ Optimal line length: ~56 characters per line is comfortable to read.

⚠️ Cramped layout: 11 elements lack adequate spacing.

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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

19 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(4)assets.adobedtm.com(3)uciservice.com(2)datadoghq-browser-agent.com(1)d22xmn10vbouk4.cloudfront.net(1)

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Last analyzed: 20 Feb 2026 at 08:50

Historical Analysis & Change Tracking