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

lpages.co

https://lpages.co· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

lpages.co

Sponsored

Hosting Provider

Google Cloud Platform

cloud.google.com

IP Address

35.202.21.90

Server Location

🇺🇸 Council Bluffs, United States

ASN

AS396982

Organization

Google Cloud (us-central1)

Server

Vercel

Nameservers

ns-cloud-b1.googledomains.com.ns-cloud-b3.googledomains.com.ns-cloud-b2.googledomains.com.ns-cloud-b4.googledomains.com.

Performance

Page Speed

1.8 MB

135 requests

Image Optimization

Lazy LoadWebPResponsiveVercel Image Optimization

0–49

50–89

90–100

Architecture Stack

JAMstack

🔀 Hybrid

Decoupled

Frontend

Framework

Next.js

Styling

Tailwind CSS

API

Data Source

Headless CMS

Sanity

Infrastructure

Hosting

Google Cloud Platform

CDN

Vercel Image

Detected API Sources

https://cdn.sanity.io/images/1...

Technology Stack

15 Technologies Detected

Analytics

Email Marketing

Meta Frameworks

Other

CSS Frameworks

Tag Managers

Marketing

Advertising

Other

Platforms

Customer Support

SEO Analysis

A+96/100

lpages.colpages.co

Landing Page Builder for Lead Generation

Create high-converting landing pages and memorable campaigns with our complete suite of conversion tools and collaborative technology.

Title Length40 chars

Recommended: 50-60 chars

Description Length134 chars

Recommended: 120-160 chars

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

36d

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

25.12.2025

Valid Until

25.03.2026

Subject Alternative Names (2)

leadpages.comwww.leadpages.com

SHA-256 Fingerprint

1C:8B:BE:DB:AE:B3:5B:AE:EA:7A:7A:D2:E6:66:12:24:80:B9:F6:8A...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin

age

7693

cache-control

🔵 Public(public, s-maxage=2678400)

content-disposition

inline

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

alt3.aspmx.l.google.com

aspmx.l.google.com

alt2.aspmx.l.google.com

alt1.aspmx.l.google.com

+1 more

Domain Information

lpages.co

DNSSEC

Not Enabled

Privacy & Compliance

iubenda

Cookie Consent Banner

iubenda

GDPR Indicators

Cookie consent banner detected

CMP: iubenda

Typography & Readability

__uxumVF_7f4657 + __Inter_f367f3

79/100

Readability

/30

40/40

20px · LH 1.60

Hierarchy

/20

18/25

4x ratio

WCAG

/25

11/15

Contrast: undefined

Performance

/25

17/20

System fonts

Heading Font

__uxumVF_7f4657

Sans80px

Body Font

__Inter_f367f3

Sans20px

Contrast Ratio

Reading Comfort

~63 CPL

Optimal (45–75)

80px

64px

20px

32px

20px

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

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 4.0x larger than body text.

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

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

✅ Optimal line length: ~63 characters per line is comfortable to read.

Buy on MyFonts

Business & Marketing Stack

8 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

HotjarMid-Market

Google AnalyticsFree

User behavior and product analytics

Advertising

LinkedIn AdsEnterprise

Reddit PixelMid-Market

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

IubendaSMB

Cookie consent and privacy compliance tools

Affiliate & Partnerships

AWINMid-Market

Affiliate networks and partner tracking

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(14)cdn.iubenda.com(1)try.leadpages.com(1)snap.licdn.com(1)cdn.funnelytics.io(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube Pinterest

Sponsored

Last analyzed: 16 Feb 2026 at 19:38

Historical Analysis & Change Tracking