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

govtrack.us

https://govtrack.us· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

govtrack.us

Mobile

Sponsored

Hosting Provider

RimuHosting

IP Address

72.249.66.95

Server Location

🇺🇸 Dallas, United States

ASN

AS17378

Organization

RimuHosting

Server

Nginx

Nameservers

ns08.domaincontrol.com.ns07.domaincontrol.com.

Performance

Page Speed

1.6 MB

24 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

Infrastructure

Hosting

RimuHosting

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

5 Technologies Detected

CSS Frameworks

Libraries

Icon Libraries

Web Servers

SEO Analysis

C62/100

govtrack.usgovtrack.us

GovTrack.us: Tracking the U.S. Congress and the White House

Tracking legislation and votes in the United States Congress and actions by the White House.

Title Length59 chars

Recommended: 50-60 chars

Description Length92 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (5/5)

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

6 URLs

robots.txt

97 rules

Sitemap reference found

Sponsored

Security Score

54%Poor

Interactive

HTTPS

No WAF

38d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

24.12.2025

Valid Until

24.03.2026

Subject Alternative Names (2)

govtrack.uswww.govtrack.us

SHA-256 Fingerprint

AA:C9:22:58:0A:E0:0D:79:81:DA:8A:CD:78:30:1E:F0:80:B5:D2:91...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔵 Public(public)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

cross-origin-opener-policy

same-origin

date

Fri, 13 Feb 2026 21:37:00 GMT

feature-policy

geolocation 'self'; midi 'none'; notifications 'none'; push ...

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

box.occams.info

Domain Information

govtrack.us

DNSSEC

Not Enabled

Typography & Readability

Public Sans

68/100

Readability

/30

32/40

15px · LH 1.50

Hierarchy

/20

13/25

1.84x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Public Sans

Sans28px

Body Font

Public Sans

Sans15px

Contrast Ratio

Reading Comfort

~40 CPL

Needs attention

28px

23px

16px

15px

⚠️ Small text: 15px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Good hierarchy: Clear distinction between headlines and body text.

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

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

✅ Protected text on images: Using text-shadow for readability.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

12 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(7)

Website Identity

GitHub Mastodon Bluesky

Sponsored

Last analyzed: 13 Feb 2026 at 21:37

Historical Analysis & Change Tracking