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

usbank.com

https://usbank.com· First analyzed 14 Feb 2026· Updated 14 Feb 2026

Export

usbank.com

Mobile

Sponsored

Hosting Provider

U.S. BANCORP

IP Address

170.135.104.254

Server Location

🇺🇸 Minneapolis, United States

ASN

AS3147

Organization

U.S. BANCORP

Server

Apache

CDN

Akamai

WAF

Akamai

Nameservers

ns4.usbank.com.ns2.usbank.com.

Performance

Page Speed

1.7 MB

153 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Tailwind CSS

CMS

Adobe Experience Manager

Infrastructure

Hosting

U.S. BANCORP

CDN

Akamai

Technology Stack

10 Technologies Detected

Advertising

Google Ads LinkedIn Ads Snapchat Pixel Microsoft Advertising

CSS Frameworks

Analytics

Libraries

Web Servers

SEO Analysis

A+90/100

usbank.comusbank.com

Personal Banking, Credit Cards, Loans & Investing | U.S. Bank

Experience personalized banking services for your unique needs with U.S. Bank - Checking, credit cards, home loans & convenient online banking. Member FDIC.

Title Length61 chars

Recommended: 50-60 chars

Description Length156 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

43 rules

Sitemap reference found

Sponsored

Security Score

61%Fair

Interactive

HTTPS

WAF

44d

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

Valid From

31.03.2025

Valid Until

30.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

prd.1306.usbank.comwww.usbank.com

SHA-256 Fingerprint

8E:FB:53:A5:CC:65:54:8D:C1:E2:DF:91:9A:1E:D2:3D:8B:8E:BF:EB...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

access-control-allow-origin

cache-control

🟡 4 Hours(max-age=14400)

content-encoding

⚡ Brotli(br)

content-length

30141

content-security-policy

default-src 'self' *.usbank.com 'unsafe-inline' 'unsafe-eval...

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mxa-00256501.gslb.pphosted.com

mxb-00256501.gslb.pphosted.com

Domain Information

usbank.com

Domain Age

31 years

Created

14.02.1995

Expires

07.04.2030

Last Updated

09.01.2025

Registrar

MarkMonitor Inc.

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Typography & Readability

Circular

63/100

Readability

/30

32/40

16px · LH 1.25

Hierarchy

/20

8/25

0.88x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Circular

Sans14px

Body Font

Circular

Sans16px

Contrast Ratio

Reading Comfort

~43 CPL

Needs attention

14px

24px

20px

24px

16px

Major Third

Scale

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

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

✅ Good performance: Using 1 font families keeps load times fast.

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

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

⚠️ Cramped layout: 65 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

9 Tools Detected

Enterprise

Marketing Automation

MarketoEnterprise

Email marketing and automation platforms

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

Quantum MetricEnterprise

User behavior and product analytics

Advertising

Facebook PixelMid-Market

LinkedIn AdsEnterprise

Pinterest AdsMid-Market

Microsoft AdsEnterprise

Snapchat PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

23 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(4)connect.facebook.net(3)munchkin.marketo.net(2)s.pinimg.com(2)zn_6vxkyqywaf9f1t7-usbank.siteintercept.qualtrics.com(1)

Website Identity

Facebook X (Twitter)Instagram

Sponsored

Last analyzed: 14 Feb 2026 at 07:36

Historical Analysis & Change Tracking