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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notepad-plus-plus.org

https://notepad-plus-plus.org· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

Mobile

Sponsored

Hosting Provider

AQUARAYSAS

IP Address

95.128.42.184

Server Location

🇫🇷 Ivry-sur-Seine, France

ASN

AS41653

Server

Apache

Nameservers

ns1.aquaray.com.ns0.aquaray.com.

Performance

Page Speed

84 KB

17 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

AQUARAYSAS

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

5 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Advertising

Google Ads Google AdSense

Web Servers

Apache

SEO Analysis

D47/100

notepad-plus-plus.orgnotepad-plus-plus.org

Notepad++

No description available for this page.

Title Length9 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 (2/3)

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

248 URLs

robots.txt

Sponsored

Security Score

71%Good

Static / Informational

HTTPS

No WAF

67d

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

21.01.2026

Valid Until

21.04.2026

Subject Alternative Names (1)

notepad-plus-plus.org

SHA-256 Fingerprint

6A:27:53:FB:C2:FC:CB:0D:4D:8E:21:67:90:AD:1B:B4:72:34:0C:83...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

content-encoding

📦 Gzip(gzip)

content-type

text/html

date

Thu, 12 Feb 2026 22:07:22 GMT

etag

W/"44a5-6494bceca4040"

last-modified

Mon, 26 Jan 2026 15:03:21 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

mx1.aquaray.com

mx0.aquaray.com

Domain Information

notepad-plus-plus.org

Domain Age

15y 8m

Created

29.05.2010

Expires

29.05.2027

Last Updated

21.01.2026

Registrar

Wild West Domains, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

Miriam Libre + Arial

98/100

Readability

/30

40/40

18px · LH 1.50

Hierarchy

/20

25/25

2.5x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Miriam Libre

Sans45px

Body Font

Arial

Sans18px

Contrast Ratio

Reading Comfort

~31 CPL

Needs attention

45px

37px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.5x larger than body text.

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

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Sponsored

Scripts & Styles

8 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(2)notepad-plus-plus.org(2)google-analytics.com(1)cdn.carbonads.com(1)

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Last analyzed: 12 Feb 2026 at 22:07

Historical Analysis & Change Tracking