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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papajohns.com

https://papajohns.com· First analyzed 25 Apr 2026· Updated 25 Apr 2026

Export

papajohns.com

Mobile

Sponsored

Hosting Provider

Akamai Technologies, Inc.

IP Address

104.99.233.68

Site Location

🇳🇱 Netherlandsvia ip

Server Location

🇳🇱 Amsterdam, Netherlands

ASN

AS16625

Organization

Akamai Technologies, Inc.

Server

Envoy

CDN

Akamai

WAF

Akamai

Nameservers

a13-66.akam.net.a8-64.akam.net.a9-65.akam.net.a12-65.akam.net.+2 more

Performance

Core Web Vitals

Weight

First Contentful Paint

862 ms10%

Speed Index

1.1 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

123 KB

65 requests

Image Optimization

Lazy LoadResponsiveVercel Image Optimization

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Tailwind CSS

Infrastructure

Hosting

Akamai Technologies, Inc.

CDN

Akamai

Progressive Web App

Service WorkerApple Touch Icon

Technology Stack

13 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel FullStory

Advertising

TikTok Pixel Snapchat Pixel

Frameworks

Meta Frameworks

CSS Frameworks

Icon Libraries

Tag Managers

Other

Customer Support

SEO Analysis

D57/100

Meta Tags7/15

Content9/12

Headings7/8

Technical15/21

E-E-A-T0/7

Images5/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

papajohns.compapajohns.com

Papa Johns Pizza Delivery & Carryout - Best Deals on Pizza, Sides &...

Enjoy the ease of ordering delicious pizza for delivery or carryout from a Papa Johns near you. Start tracking the speed of your delivery and earn rewards on...

Title truncated. Description truncated.

Title Length72 chars

Recommended: 50-60 chars (~433px / 580px)

Description Length207 chars

Recommended: 120-160 chars

Issues (1)

• Title is too long (72 chars, ~433px). Will be truncated in search results.

11 issues found

Upgrade to view details

Local SEO

Local Search Readiness

17/100

Poor

6 11 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D47/100

Bot Access

20/25

Machine Read.

15/25

Schema Data

0/25

Citation

12/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

nav

Text ratio:1%

Words:714

Token eff.:Optimal

Sections/1K:15.4

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary41w

Descriptive Headingsavg 3.4w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

Upgrade to view recommendations

Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

85/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

17/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

15/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

15/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

11/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

7/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

2 recommendations

•Accessibility recommendation preview...

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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

78/100

A+

12 mg

CO₂e / view

123.2 KB

Page Weight

95%

Cleaner Than

New Visitor

14 mg

Returning (cached)

7 mg

Annual (10K/mo)

1.5 kg

Emission Segments

Data Center

<0.001 g

Network

4 mg

Device

8 mg

Resource Breakdown

Images

66.5 KB

HTML

56.7 KB

Green Hosting Verified

Akamai Technologies, Inc.

Provider Match

4 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

41%Poor

Interactive

HTTPS

WAF

180d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

07.04.2026

Valid Until

22.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

www.papajohns.comanalytics.papajohns.comapi.papajohns.comcarts.papajohns.comclicks.papajohns.comddcart.papajohns.comddmenu.papajohns.comddorders.papajohns.com+12 more

SHA-256 Fingerprint

EE:3C:D4:37:61:B0:E9:A8:6A:A1:AE:7F:EC:18:5E:A7:53:89:54:6F...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

akamai-grn

0.9285d817.1777112791.64c98ef

alt-svc

h3=":443"; ma=93600

cache-control

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

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=utf-8

date

Sat, 25 Apr 2026 10:26:31 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

papajohns-com.mail.protection.outlook.com

Domain Information

papajohns.com

Domain Age

30y 9m

Created

29.07.1995

Expires

28.07.2027

Last Updated

29.05.2025

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

74/100

Mobile Friendly6 breakpoints

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width, initial-scale=1, maximum-scale=5, user-scalable=no

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

papaSansFont + sarabunFont

WCAG Partial

66/100

Readability

/30

14/30

12px · LH 2.00

Hierarchy

/20

18/20

3x ratio · ✓ H1→H6

WCAG

/25

18/25

1.61:1 min contrast

Performance

/25

16/25

3 fonts · 2 req

Heading Font

papaSansFont

Sans36px

Body Font

sarabunFont

Sans12px

Contrast Ratio

1.61:1

2 issues

Reading Comfort

~47 CPL

Optimal (45–75)

36px

40px

20px

12px

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Wide line spacing (2.00). 1.4–1.6 is optimal for body text.

✅ Optimal line length: ~47 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.6:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

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

Buy on MyFontsFlesch 50

Color Palette

9 unique colors

Light

#f9f9f9

Background· 32.8%

#0f291c

Primary· 20.3%

#2e5e2c

Primary· 13.5%

#e38249

Accent· 8.4%

#92703d

Secondary· 7.3%

#e6eab0

Accent· 5.9%

#dabb81

Accent· 5.9%

#eafc73

Accent· 3.3%

Business & Marketing Stack

7 Tools Detected

Enterprise

Behavior Analytics

Google AnalyticsFree

FullStoryEnterprise

Google Tag ManagerFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

TikTok PixelMid-Market

Snapchat PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

27 Resources

Scripts

Styles

Async

Defer

Top Script Sources

p11.techlab-cdn.com(4)edge.fullstory.com(3)analytics.tiktok.com(3)connect.facebook.net(2)cdn.appdynamics.com(1)

Website Identity

papajohns.com

8775477272

30 years old

Location detected: 🇳🇱 Netherlandsvia ip

Network Solutions, LLC📧 Microsoft 365en

Social Profiles

Facebook X (Twitter)Instagram YouTube

Sponsored

Last analyzed: 25 Apr 2026 at 10:26

Historical Analysis & Change Tracking