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

dietaryguidelines.gov

https://dietaryguidelines.gov· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

Sponsored

Hosting Provider

USDA

IP Address

162.79.29.12

Server Location

🇺🇸 Fort Collins, United States

ASN

AS4155

Organization

USDA

CDN

Akamai

WAF

Akamai

Nameservers

ns1.usda.gov.ns2.usda.gov.

Performance

Page Speed

1.3 MB

38 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Drupal

Technology Stack

5 Technologies Detected

UI Components

Slick Carousel Lightbox

Libraries

jQuery

CSS Frameworks

Tailwind CSS

Customer Support

Zendesk

SEO Analysis

C64/100

dietaryguidelines.govdietaryguidelines.gov

Dietary Guidelines for Americans

The Dietary Guidelines for Americans (Dietary Guidelines) provides advice on what to eat and drink to meet nutrient needs, promote health, and prevent disease.

Title Length32 chars

Recommended: 50-60 chars

Description Length159 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

4 issues found

Upgrade to view details

Sponsored

Security Score

81%Very Good

Interactive

HTTPS

WAF

329d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

Valid From

16.01.2026

Valid Until

15.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (20)

usda.govaphis.stg.platform.usda.govclimatehubs.usda.govcloudfiles.ocio.usda.govdam-fns.usda.govdamuat.fns.edc.usda.govdg.fns.agcloud.usda.govdguat.fns.edc.usda.gov+12 more

SHA-256 Fingerprint

F7:08:D7:6A:6B:A2:C2:14:92:84:BC:20:E4:69:D6:04:47:A0:6F:3B...

Upgrade to view header details

HTTP Headers

Developer Console

content-type

text/html; charset=UTF-8

content-language

x-drupal-dynamic-cache

MISS

x-content-type-options

nosniff

x-frame-options

SAMEORIGIN

x-generator

Drupal 10 (https://www.drupal.org)

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

Domain Information

dietaryguidelines.gov

Domain Age

17y 7m

Created

08.07.2008

Expires

01.07.2026

Last Updated

17.10.2025

Registrar

get.gov

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

Georgia + Helvetica Neue

31/100

Readability

/30

20/40

12px · LH 1.50

Hierarchy

/20

8/25

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Georgia

Serif

Body Font

Helvetica Neue

Sans12px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

35px

20px

12px

❌ Critical: 12px body text is too small. Increase to at least 14px.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Good performance: Using 2 font families keeps load times fast.

⚠️ Risky: Text appears on background images without overlay protection.

⚠️ Cramped layout: 9 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

9 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(6)s.go-mpulse.net(1)

Sponsored

Last analyzed: 20 Feb 2026 at 07:28

Historical Analysis & Change Tracking