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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.

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insighttimer.com

https://insighttimer.com· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

insighttimer.com

Sponsored

Hosting Provider

Fastly, Inc.

IP Address

151.101.1.195

Server Location

🇨🇦 Montreal, Canada

ASN

AS54113

Organization

Fastly, Inc.

Server

Google Frontend

CDN

Fastly

Nameservers

ns-143.awsdns-17.com.ns-1518.awsdns-61.org.ns-1580.awsdns-05.co.uk.ns-788.awsdns-34.net.

Performance

Page Speed

1.4 MB

95 requests

Image Optimization

Lazy LoadWebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Fastly, Inc.

CDN

Fastly

Progressive Web App

Web ManifestTheme Color

Technology Stack

8 Technologies Detected

CSS Frameworks

Tailwind CSS

Chakra UI Material UI

Analytics

Google Analytics

Google Analytics 4

Languages

Frameworks

Express

Customer Support

Zendesk

SEO Analysis

B76/100

insighttimer.cominsighttimer.com

Insight Timer — #1 Free Meditation App

The best meditation app with the world’s largest FREE library of more than 55k guided meditations, 8k teachers & the world’s most loved meditation Timer.

Title Length38 chars

Recommended: 50-60 chars

Description Length153 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (44/48)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

6 rules

Sitemap reference found

Allows all crawlers

Sponsored

A+

Security Score

100%Excellent

Static / Informational

HTTPS

No WAF

83d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

11.02.2026

Valid Until

12.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

insighttimer.comapp.insighttimer.comapp-internal.insighttimer.comapp-internal-staging.insighttimer.comapp-staging.insighttimer.comfunnel-staging.insighttimer.comlive.insighttimer.comlive-staging.insighttimer.com+12 more

SHA-256 Fingerprint

37:6F:B5:81:D7:F8:CB:18:DE:3D:20:92:A5:C4:8B:9C:5B:29:47:68...

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

alt-svc

h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=864...

cache-control

🟡 300s(max-age=300)

content-encoding

⚡ Brotli(br)

content-length

2223

content-security-policy

default-src https:; script-src https: 'unsafe-inline' 'unsaf...

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

aspmx.l.google.com

alt2.aspmx.l.google.com

aspmx3.googlemail.com

aspmx2.googlemail.com

+1 more

Domain Information

insighttimer.com

Domain Age

15 years

Created

16.02.2011

Expires

16.02.2028

Last Updated

16.02.2026

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

Gelica + ProximaNova

59/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

18/25

4.06x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Gelica

Sans65px

Body Font

ProximaNova

Sans16px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

65px

24px

20px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 4.1x larger than body text.

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

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

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

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Sponsored

Scripts & Styles

6 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(3)googletagmanager.com(1)

Sponsored

Last analyzed: 17 Feb 2026 at 22:08

Historical Analysis & Change Tracking