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

bk.com

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

Export

bk.com

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

3.162.38.61

Server Location

🇫🇷 Paris, France

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

AmazonS3

CDN

CloudFront

Nameservers

udns1.cscdns.net.udns2.cscdns.uk.

Performance

Page Speed

2.8 MB

95 requests

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

API

Data Source

Headless CMS

Sanity

Infrastructure

Hosting

Amazon Web Services (AWS)

CDN

CloudFront

Detected API Sources

https://cdn.sanity.io/images/k...

Technology Stack

6 Technologies Detected

Analytics

Frameworks

Icon Libraries

Tag Managers

SEO Analysis

D41/100

bk.combk.com

Burger King

No description available for this page.

Title Length11 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 (12/14)

7 issues found

Upgrade to view details

Sponsored

Security Score

88%Very Good

Static / Informational

HTTPS

WAF

181d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

19.07.2025

Valid Until

17.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (17)

bk.comburgerking.comwww.bk.combkcrown.comwww.bkcrown.comprod.web.bk-us.com.rbi.toolswww.whopper.commobile.bk.com+9 more

SHA-256 Fingerprint

99:36:B7:1A:3B:E4:D2:EB:17:18:20:91:CB:36:AF:82:BD:FD:88:73...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

37602

content-encoding

📦 Gzip(gzip)

content-security-policy

frame-ancestors 'none'; report-uri https://prod-bk-csp-servi...

content-type

text/html

date

Tue, 17 Feb 2026 02:15:27 GMT

etag

W/"cd6a7a203d236f9593f36a60b279f5e7"

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

aspmx.l.google.com

Domain Information

bk.com

Domain Age

27y 7m

Created

10.07.1998

Expires

09.07.2026

Last Updated

05.07.2024

Registrar

CSC Corporate Domains, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Typography & Readability

Flame-Bold + Times New Roman

71/100

Readability

/30

30/40

16px · LH --

Hierarchy

/20

18/25

3.75x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

Flame-Bold

Sans60px

Body Font

Times New Roman

Serif16px

Contrast Ratio

Reading Comfort

Sans Headlines + Serif Body

left aligned

60px

24px

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

✅ Strong hierarchy: Headlines are 3.8x larger than body text.

Buy on MyFonts

Business & Marketing Stack

6 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

AmplitudeMid-Market

User behavior and product analytics

Advertising

TikTok PixelMid-Market

Snapchat PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

15 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(3)maps.googleapis.com(3)googletagmanager.com(2)cdn.cookielaw.org(2)89ea0743f614.cdn4.forter.com(1)

Website Identity

bk.com

27 years old

CSC Corporate Domains, Inc.📧 Google Workspace

Sponsored

Last analyzed: 17 Feb 2026 at 12:42

Historical Analysis & Change Tracking