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.

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mailenable.com

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

Export

mailenable.com

Mobile

Sponsored

Hosting Provider

Cogeco Peer 1

IP Address

216.157.69.92

Server Location

🇺🇸 Miami, United States

ASN

AS13768

Organization

Cogeco Peer 1

Server

Microsoft IIS

Nameservers

dns5.name-services.com.dns1.name-services.com.dns2.name-services.com.dns3.name-services.com.+1 more

Performance

Page Speed

855 KB

38 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Cogeco Peer 1

Technology Stack

9 Technologies Detected

Analytics

Libraries

CSS Frameworks

Fonts

Advertising

Web Servers

Security

SEO Analysis

D50/100

mailenable.commailenable.com

Windows Mail Server, Email Server Software, Mail Servers | MailEnable

Windows mail server software with webmail, caldav, carddav, antivirus, spam filtering - Fast, secure email server software for windows. Download free mail se...

Description truncated.

Title Length69 chars

Recommended: 50-60 chars

Description Length168 chars

Recommended: 120-160 chars

Issues (2)

• Many images missing alt text (2/2)
• Missing viewport meta tag - page may not be mobile-friendly

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

878 URLs

robots.txt

28 rules

Sitemap reference found

Sponsored

Security Score

31%Critical

Interactive

HTTPS

No WAF

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

22.01.2025

Valid Until

22.02.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.mailenable.commailenable.com

SHA-256 Fingerprint

8B:0F:96:50:BA:63:DB:1E:54:E6:0F:82:61:0A:17:89:07:63:2C:67...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟣 Private(private)

content-length

33624

content-type

text/html; charset=utf-8

date

Sun, 15 Feb 2026 03:55:06 GMT

server

Microsoft-IIS/10.0

x-frame-options

SAMEORIGIN

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

mail.mailenable.com

Domain Information

mailenable.com

Domain Age

24y 9m

Created

30.04.2001

Expires

30.04.2026

Last Updated

25.04.2025

Registrar

eNom, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

CenturyGothic + Arial

38/100

Readability

/30

20/40

12px · LH 1.50

Hierarchy

/20

8/25

1.25x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

CenturyGothic

Sans15px

Body Font

Arial

Sans12px

Contrast Ratio

Reading Comfort

Dual Sans-Serif

left aligned

15px

22px

18px

Major Second

Scale

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

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

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

⚠️ Cramped layout: 27 elements lack adequate spacing.

GGoogle Fonts Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Google AdsEnterprise

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

13 Resources

Scripts

Styles

Async

Defer

Top Script Sources

connect.facebook.net(2)local(2)gstatic.com(1)ajax.googleapis.com(1)googletagmanager.com(1)

Website Identity

Facebook X (Twitter)LinkedIn

Sponsored

Last analyzed: 15 Feb 2026 at 03:55

Historical Analysis & Change Tracking