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

haproxy.com

https://haproxy.com· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

haproxy.com

Mobile

Sponsored

Hosting Provider

HAProxy Technologies, Inc.

IP Address

209.126.35.1

Server Location

🇺🇸 New York, United States

ASN

AS11019

Organization

HAProxy Technologies, Inc.

Server

Apache

Nameservers

ns2.haproxy.com.ns1.haproxy.com.ns0.haproxy.com.ns3.haproxy.com.

Performance

Page Speed

3.4 MB

45 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

Alpine.js

Styling

Tailwind CSS

Infrastructure

Hosting

HAProxy Technologies, Inc.

Technology Stack

15 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Plausible Analytics FullStory

Advertising

Google Ads Google AdSense

Frameworks

UI Components

CSS Frameworks

Icon Libraries

Tag Managers

Other

Web Servers

Marketing

Customer Support

SEO Analysis

A+94/100

haproxy.comhaproxy.com

HAProxy Technologies | Powering the World's Busiest Applications

Simplify, scale, and secure modern applications, APIs, and AI services in any environment. HAProxy Technologies is the company behind HAProxy.

Title Length64 chars

Recommended: 50-60 chars

Description Length142 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

777 URLs

robots.txt

11 rules

Sitemap reference found

Sponsored

Security Score

51%Poor

Interactive

HTTPS

No WAF

64d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

19.03.2025

Valid Until

17.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.haproxy.comhaproxy.com

SHA-256 Fingerprint

8F:99:2A:D8:F4:DB:49:25:2E:A4:C4:50:B4:1A:51:85:71:63:DB:B0...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ch

Sec-CH-UA,Sec-CH-UA-Arch,Sec-CH-UA-Full-Version,Sec-CH-UA-Fu...

accept-ranges

bytes

alt-svc

h3=":443"; ma=3600

cache-control

🟡 0s(max-age=0)

content-encoding

📦 Gzip(gzip)

content-security-policy

frame-ancestors 'none';

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

pmg00.haproxy.com

pmg01.haproxy.com

Domain Information

haproxy.com

Domain Age

18y 9m

Created

17.05.2007

Expires

17.05.2028

Last Updated

06.10.2024

Registrar

DNC Holdings, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

Typography & Readability

Helvetica + system-ui

85/100

Readability

/30

32/40

14px · LH 1.50

Hierarchy

/20

25/25

4.57x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Helvetica

Sans64px

Body Font

system-ui

Sans14px

Contrast Ratio

Reading Comfort

~31 CPL

Needs attention

64px

16px

32px

14px

Major Second

Scale

⚠️ 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 4.6x larger than body text.

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

✅ Protected text on images: Using gradient for readability.

⚠️ Cramped layout: 15 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

6 Tools Detected

Enterprise

Behavior Analytics

PlausibleSMB

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Scheduling

CalendlySMB

Appointment and meeting schedulers

Advertising

Google AdsEnterprise

Ad platforms and retargeting pixels

A/B Testing & Optimization

VWO (Visual Website Optimizer)Mid-Market

Experimentation and conversion optimization

Sponsored

Scripts & Styles

12 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cdn.haproxy.com(4)googletagmanager.com(2)rum-static.pingdom.net(1)bmrg.haproxy.com(1)plausible.io(1)

Website Identity

Facebook X (Twitter)LinkedIn YouTube GitHub Reddit Bluesky

Sponsored

Last analyzed: 12 Feb 2026 at 14:29

Historical Analysis & Change Tracking