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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penny-arcade.com

https://penny-arcade.com· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

penny-arcade.com

Sponsored

Hosting Provider

Google Cloud Platform

cloud.google.com

IP Address

34.98.75.234

Server Location

🇺🇸 Kansas City, United States

ASN

AS396982

Organization

Google Cloud

Server

Nginx

CDN

Cloudflare

WAF

Cloudflare

Nameservers

fay.ns.cloudflare.com.mark.ns.cloudflare.com.

Performance

Page Speed

1.1 MB

37 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Technology Stack

18 Technologies Detected

Advertising

Google Ads Criteo Taboola Outbrain

Fonts

Google Fonts Adobe Fonts (Typekit)Adobe Fonts

Meta Frameworks

Analytics

Libraries

CSS Frameworks

Icon Libraries

Payments

Personalization

Web Servers

Languages

SEO Analysis

D47/100

penny-arcade.compenny-arcade.com

Home - Penny Arcade

No description available for this page.

Title Length19 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 (5/9)

6 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

4 rules

Allows all crawlers

Sponsored

Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

70d

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+H3

Valid From

28.01.2026

Valid Until

28.04.2026

Subject Alternative Names (2)

*.penny-arcade.compenny-arcade.com

SHA-256 Fingerprint

CE:00:1A:D7:32:A2:AD:DA:45:F0:35:AC:DD:DA:6E:F2:F4:60:E9:AB...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=2592000,h3-29=":443"; ma=2592000

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

content-type

text/html; charset=UTF-8

date

Tue, 17 Feb 2026 07:55:38 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

pragma

no-cache

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (7)

alt2.aspmx.l.google.com

aspmx.l.google.com

aspmx3.googlemail.com

aspmx5.googlemail.com

+3 more

Domain Information

penny-arcade.com

Domain Age

27 years

Created

24.02.1999

Expires

23.06.2026

Last Updated

08.06.2025

Registrar

Squarespace Domains II LLC

DNSSEC

Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner

Quantcast Choice

GDPR Indicators

Cookie consent banner detected

CMP: Quantcast Choice

Data Protection Officer mentioned

Legitimate interest basis mentioned

Typography & Readability

Open Sans + Helvetica

73/100

Readability

/30

40/40

20px · LH 1.60

Hierarchy

/20

15/25

0.9x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

Open Sans

Sans18px

Body Font

Helvetica

Sans20px

Contrast Ratio

Reading Comfort

~36 CPL

Needs attention

18px

14px

24px

22px

20px

Major Second

Scale

✅ Excellent readability: 20px body text is ideal for all devices.

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

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

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

✅ Protected text on images: Using gradient for readability.

⚠️ Cramped layout: 35 elements lack adequate spacing.

GGoogle Fonts AAdobe Fonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

14 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(4)securepubads.g.doubleclick.net(2)fundingchoicesmessages.google.com(2)ajax.googleapis.com(1)googletagmanager.com(1)

Website Identity

Facebook X (Twitter)Instagram TikTok

Sponsored

Last analyzed: 17 Feb 2026 at 07:55

Historical Analysis & Change Tracking