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

usbr.gov

https://usbr.gov· First analyzed 18 Feb 2026· Updated 18 Feb 2026

Export

usbr.gov

Sponsored

Hosting Provider

U.S. Bureau of Reclamation

IP Address

137.77.5.62

Server Location

🇺🇸 Denver, United States

ASN

AS22284

Organization

U.S. Bureau of Reclamation

CDN

Cloudflare

WAF

Cloudflare

Nameservers

miles.ns.cloudflare.com.chin.ns.cloudflare.com.

Performance

Page Speed

2.8 MB

43 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

U.S. Bureau of Reclamation

CDN

Cloudflare

Technology Stack

5 Technologies Detected

Analytics

Libraries

Other

CSS Frameworks

SEO Analysis

D52/100

usbr.govusbr.gov

Bureau of Reclamation

Bureau of Reclamation - Managing water and power in the West

Title Length21 chars

Recommended: 50-60 chars

Description Length60 chars

Recommended: 120-160 chars

Issues (0)

6 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

3 rules

Sponsored

Security Score

46%Poor

Interactive

HTTPS

No WAF

342d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

Valid From

22.01.2026

Valid Until

26.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.usbr.govusbr.gov

SHA-256 Fingerprint

64:05:6F:18:17:DD:15:E1:72:3E:AE:F7:86:9A:C1:10:F3:A7:B5:62...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

16467

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

usbr-gov.mail.protection.outlook.com

Domain Information

usbr.gov

Domain Age

28y 4m

Created

02.10.1997

Expires

29.09.2026

Last Updated

04.10.2025

Registrar

get.gov

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Arial

83/100

Readability

/30

40/40

20px · LH 1.40

Hierarchy

/20

13/25

1.7x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Arial

Sans34px

Body Font

Arial

Sans20px

Contrast Ratio

Reading Comfort

~45 CPL

Needs attention

34px

24px

20px

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

✅ Optimal line spacing: 1.40 ratio ensures comfortable reading.

✅ Good hierarchy: Clear distinction between headlines and 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.

✅ Protected text on images: Using gradient for readability.

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Sponsored

Scripts & Styles

19 Resources

Scripts

Styles

Async

Defer

Top Script Sources

usbr.gov(13)googletagmanager.com(3)dap.digitalgov.gov(2)

Website Identity

Facebook X (Twitter)Instagram LinkedIn

Sponsored

Last analyzed: 18 Feb 2026 at 07:17

Historical Analysis & Change Tracking