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

tupalo.com

https://tupalo.com· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

tupalo.com

Sponsored

Hosting Provider

Hetzner

hetzner.com

IP Address

162.55.65.173

Server Location

🇩🇪 Falkenstein, Germany

ASN

AS24940

Organization

Hetzner Online GmbH

Nameservers

ns-1350.awsdns-40.org.ns-1606.awsdns-08.co.uk.ns-281.awsdns-35.com.ns-530.awsdns-02.net.

Performance

Page Speed

85 KB

15 requests

Image Optimization

WebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Hetzner

Technology Stack

5 Technologies Detected

Analytics

Libraries

CSS Frameworks

Customer Support

SEO Analysis

C64/100

tupalo.comtupalo.com

Welcome to Tupalo

Local business reviews and recommendations of Restaurants, Cafes, Shops, Salons, Plumbers and more at Tupalo

Title Length17 chars

Recommended: 50-60 chars

Description Length108 chars

Recommended: 120-160 chars

Issues (0)

5 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

223 rules

Sitemap reference found

Sponsored

Security Score

41%Poor

Interactive

HTTPS

No WAF

43d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

02.01.2026

Valid Until

02.04.2026

Subject Alternative Names (20)

*.sites.tupalo.site*.tupalo.at*.tupalo.biz*.tupalo.co*.tupalo.com*.tupalo.de*.tupalo.fi*.tupalo.fr+12 more

SHA-256 Fingerprint

48:39:E6:07:D3:8D:80:42:12:24:AD:B7:64:3E:74:17:FB:01:6D:68...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(max-age=0, private, must-revalidate, no-cache="Set-Cookie")

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8; charset=utf-8

date

Tue, 17 Feb 2026 16:01:35 GMT

etag

"f828eb1a2d6666e01e9eb83ca6b11e09"

status

200 OK

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

aspmx.l.google.com

alt1.aspmx.l.google.com

aspmx2.googlemail.com

alt2.aspmx.l.google.com

+1 more

Domain Information

tupalo.com

Domain Age

19y 5m

Created

28.08.2006

Expires

28.08.2026

Last Updated

12.08.2025

Registrar

NETIM SAS

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

-apple-system

98/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

25/25

3x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

-apple-system

Sans48px

Body Font

-apple-system

Sans16px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

48px

24px

19px

16px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.0x larger than body text.

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

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

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

4 Resources

Scripts

Styles

Async

Defer

Top Script Sources

google-analytics.com(1)local(1)

Sponsored

Last analyzed: 17 Feb 2026 at 16:01

Historical Analysis & Change Tracking