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

rense.com

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

Export

rense.com

Sponsored

Hosting Provider

TELUS Communications Inc

IP Address

74.48.175.249

Server Location

🇺🇸 Los Angeles, United States

ASN

AS35916

Organization

TELUS Communications Inc

Server

Microsoft IIS

Nameservers

ns1.dyna-ns.net.ns2.dyna-ns.net.

Performance

Page Speed

35.2 MB

250 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Technology Stack

11 Technologies Detected

Analytics

Meta Frameworks

Libraries

Icon Libraries

Payments

Web Servers

Languages

Frameworks

Plugins

SEO Analysis

F23/100

rense.comrense.com

rense.com

No description available for this page.

Title Length9 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

• Missing meta description - important for click-through rates
• Missing H1 tag - every page should have one H1
• Many images missing alt text (497/497)

8 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

20 rules

Sponsored

Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

64d

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

23.01.2026

Valid Until

23.04.2026

Subject Alternative Names (2)

rense.comwww.rense.com

SHA-256 Fingerprint

5C:14:52:13:6D:46:06:85:39:29:AF:09:7F:20:0F:E2:11:11:86:5E...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

content-length

1966180

content-type

text/html; charset=UTF-8

date

Tue, 17 Feb 2026 08:09:28 GMT

server

Microsoft-IIS/10.0

x-powered-by

PHP/8.0.0, ASP.NET

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

parkmail.dynadot.com

Domain Information

rense.com

Domain Age

26y 11m

Created

10.03.1999

Expires

10.03.2026

Last Updated

02.03.2025

Registrar

Dynadot Inc

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

helvetica

44/100

Readability

/30

10/40

12px · LH --

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

helvetica

Sans

Body Font

helvetica

Sans12px

Contrast Ratio

Reading Comfort

~49 CPL

Optimal (45–75)

19px

12px

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

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

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

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

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

16 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(6)google-analytics.com(2)js(1)topads.js(1)banners.min.js(1)

Website Identity

Facebook X (Twitter)YouTube TikTok Reddit

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Last analyzed: 17 Feb 2026 at 08:09

Historical Analysis & Change Tracking