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

freepatentsonline.com

https://freepatentsonline.com· First analyzed 15 Feb 2026· Updated 15 Feb 2026

Export

Mobile

Sponsored

Hosting Provider

TierPoint

IP Address

144.202.252.20

Server Location

🇺🇸 Hunt Valley, United States

ASN

AS17378

Organization

TierPoint

Nameservers

ns-1052.awsdns-03.org.ns-1932.awsdns-49.co.uk.ns-346.awsdns-43.com.ns-719.awsdns-25.net.

Performance

Page Speed

487 KB

22 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

TierPoint

Technology Stack

5 Technologies Detected

Advertising

Google Ads Google AdSense

Libraries

jQueryv3.6.0

CSS Frameworks

Tailwind CSS

Analytics

Google Analytics

SEO Analysis

D44/100

freepatentsonline.comfreepatentsonline.com

FPO IP Research & Communities

Complete Patent Searching Database and Patent Data Analytics Services.

Title Length29 chars

Recommended: 50-60 chars

Description Length70 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

108 URLs

robots.txt

43 rules

Sponsored

Security Score

75%Good

Critical / Transactional

HTTPS

No WAF

32d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

19.12.2025

Valid Until

19.03.2026

Subject Alternative Names (4)

freepatentsonline.comfreepatentsonline.netwww.freepatentsonline.comwww.freepatentsonline.net

SHA-256 Fingerprint

AA:19:C7:9A:F2:58:E8:F3:81:A5:42:8E:4D:0A:1E:BE:EF:A6:21:0B...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 0s(max-age=0, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-length

4708

content-security-policy

block-all-mixed-content; frame-ancestors 'self'; base-uri 's...

content-type

text/html; charset=utf-8

date

Sun, 15 Feb 2026 09:20:30 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mail.freepatentsonline.com

Domain Information

freepatentsonline.com

Domain Age

21y 9m

Created

24.05.2004

Expires

16.05.2026

Last Updated

11.04.2025

Registrar

Amazon Registrar, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Verdana + Helvetica Neue

72/100

Readability

/30

32/40

14px · LH 1.43

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Verdana

Sans

Body Font

Helvetica Neue

Sans14px

Contrast Ratio

Reading Comfort

~49 CPL

Optimal (45–75)

14px

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.43 ratio ensures comfortable reading.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

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

✅ Optimal line length: ~49 characters per line is comfortable to read.

✅ Clean layout: Consistent left alignment throughout.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

8 Resources

Scripts

Styles

Async

Defer

Top Script Sources

pagead2.googlesyndication.com(4)local(2)ssl.google-analytics.com(1)

Website Identity

X (Twitter)

Sponsored

Last analyzed: 15 Feb 2026 at 09:20

Historical Analysis & Change Tracking