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

openpr.com

https://openpr.com· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

openpr.com

Sponsored

Hosting Provider

Hetzner

hetzner.com

IP Address

157.90.187.174

Server Location

🇩🇪 Nuremberg, Germany

ASN

AS24940

Organization

Hetzner

Server

BunnyCDN-DE1-1330

CDN

Nameservers

ns16.domaincontrol.com.ns15.domaincontrol.com.

Performance

Page Speed

282 KB

103 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

Infrastructure

Hosting

Hetzner

CDN

Technology Stack

11 Technologies Detected

Analytics

Meta Frameworks

Libraries

UI Components

CSS Frameworks

Icon Libraries

CDN

SEO Analysis

D56/100

openpr.comopenpr.com

openPR.com - Worldwide Open Public Relations - Publish Press Releas...

Open Public Relations Portal - Publish Press Releases Free of Charge - Submit your PR for free

Title truncated.

Title Length84 chars

Recommended: 50-60 chars

Description Length94 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (105/159)

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

46 rules

Sitemap reference found

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

66d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

24.01.2026

Valid Until

24.04.2026

Subject Alternative Names (1)

www.openpr.com

SHA-256 Fingerprint

26:F8:33:1D:A1:19:DC:F7:2D:BD:0E:C0:73:51:AB:BF:C9:A0:FA:1C...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin

https://service.open-pr.com

cache-control

🟡 900s(public, max-age=900)

cdn-cache

HIT

cdn-cachedat

02/16/2026 14:05:34

cdn-edgestorageid

1331

cdn-proxyver

1.43

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mxlb.ispgateway.de

Domain Information

openpr.com

Domain Age

23y 5m

Created

05.09.2002

Expires

05.09.2026

Last Updated

04.09.2025

Registrar

Mesh Digital Limited

DNSSEC

Not Enabled

Privacy & Compliance

consentmanager

Cookie Consent Banner

consentmanager

GDPR Indicators

Cookie consent banner detected

CMP: consentmanager

Data Protection Officer mentioned

Typography & Readability

Fira Sans

71/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

8/25

0.8x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Fira Sans

Sans13px

Body Font

Fira Sans

Sans16px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

13px

28px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

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

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

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

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

Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Matomo (Piwik)Mid-Market

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

15 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(5)d.delivery.consentmanager.net(2)cdn.consentmanager.net(2)matomo.openpr.com(1)

Sponsored

Last analyzed: 16 Feb 2026 at 14:14

Historical Analysis & Change Tracking