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

openstack.org

https://openstack.org· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

openstack.org

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.66.40.143

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Netlify

CDN

Cloudflare

WAF

Cloudflare

Nameservers

mario.ns.cloudflare.com.kiki.ns.cloudflare.com.

Performance

Page Speed

1020 KB

82 requests

0–49

50–89

90–100

Architecture Stack

Hybrid

⚡ SSG

Frontend

Framework

Gatsby

CMS

Drupal

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

19 Technologies Detected

Meta Frameworks

Gatsby Remix Astro

CSS Frameworks

Tailwind CSS

Chakra UI Material UI

Analytics

Google Analytics

Google Analytics 4

Segment

Advertising

Twitter Ads LinkedIn Ads Microsoft Advertising

Icon Libraries

Font Awesome Material Icons

Libraries

Fonts

Tag Managers

Social

Platforms

SEO Analysis

B70/100

openstack.orgopenstack.org

Open Source Cloud Computing Infrastructure - OpenStack

OpenStack is an open source cloud computing infrastructure software project and is one of the three most active open source projects in the world.

Title Length54 chars

Recommended: 50-60 chars

Description Length146 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (37/54)

3 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

6 rules

Sitemap reference found

Allows all crawlers

Sponsored

Security Score

61%Fair

Interactive

HTTPS

No WAF

33d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

22.12.2025

Valid Until

22.03.2026

Subject Alternative Names (2)

openstack.orgwww.openstack.org

SHA-256 Fingerprint

DA:C4:50:AD:1F:86:04:6B:E9:BF:86:B5:FB:38:79:7D:98:32:D8:02...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

26018

authorization

Basic b3BlbnN0YWNrOlF1YWNrZXIh

cache-control

🟡 0s(public,max-age=0,must-revalidate)

cache-status

"Netlify Edge"; hit

content-encoding

⚡ Brotli(br)

Good Warning Issue

Email Infrastructure

Rackspace Email

Score

SPF

DKIM

DMARC

MX Records (2)

mx1.emailsrvr.com

mx2.emailsrvr.com

Domain Information

openstack.org

Domain Age

17y 4m

Created

08.10.2008

Expires

08.10.2032

Last Updated

20.11.2025

Registrar

Key-Systems GmbH

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Legitimate interest basis mentioned

Typography & Readability

Helvetica + sans-serif

78/100

Readability

/30

32/40

15px · LH 1.60

Hierarchy

/20

25/25

2.8x ratio

WCAG

/25

11/15

Contrast: undefined

Performance

/25

17/20

System fonts

Heading Font

Helvetica

Sans42px

Body Font

sans-serif

Sans15px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

42px

18px

15px

⚠️ Small text: 15px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.8x 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.

⚠️ Cramped layout: 7 elements lack adequate spacing.

GGoogle Fonts

Business & Marketing Stack

7 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Twitter/X AdsMid-Market

LinkedIn AdsEnterprise

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

19 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(6)google-analytics.com(2)googletagmanager.com(2)bat.bing.com(2)consent.cookiebot.com(2)

Website Identity

openstack.org

17 years old

Key-Systems GmbH📧 Rackspace Email

Social Profiles

Facebook X (Twitter)YouTube Bluesky

Sponsored

Last analyzed: 17 Feb 2026 at 00:06

Historical Analysis & Change Tracking