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

afternic.com

https://afternic.com· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

afternic.com

Mobile

Sponsored

Hosting Provider

GoDaddy

godaddy.com

IP Address

216.69.141.26

Server Location

🇺🇸 Tempe, United States

ASN

AS398101

Organization

GoDaddy.com, LLC

Server

Envoy

CDN

Akamai

WAF

Akamai

Nameservers

cns2.secureserver.net.cns1.secureserver.net.

Performance

Page Speed

721 KB

27 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

JAMstack

⚡ SSG

Decoupled

Frontend

Framework

Next.js

API

Data Source

Headless CMS

Contentful

Infrastructure

Hosting

GoDaddy

CDN

Akamai

Detected API Sources

//images.ctfassets.net/94l4jmn...

Technology Stack

4 Technologies Detected

Frameworks

Meta Frameworks

CSS Frameworks

Customer Support

SEO Analysis

A82/100

afternic.comafternic.com

Sell Domains | Buy Domains | Park Domains - Afternic

Afternic is a one-stop site to buy, sell and park domains. See for your self why Afternic is the world's premiere domain marketplace and exchange reseller.

Title Length52 chars

Recommended: 50-60 chars

Description Length155 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

6 URLs

robots.txt

1 rules

Allows all crawlers

Sponsored

Security Score

72%Good

Interactive

HTTPS

WAF

244d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GoDaddy.com, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

17.09.2025

Valid Until

19.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (12)

swagger.api.afternic.comwww.afternic.comwww.domainnames.comgui.afternic.comsso.afternic.comafternic.comapi.afternic.comaccount.afternic.com+4 more

SHA-256 Fingerprint

80:26:FA:79:BA:D4:A4:E3:E6:BA:A1:57:75:10:16:E8:0F:70:45:4E...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

⚪ Custom(s-maxage=15, stale-while-revalidate)

content-encoding

📦 Gzip(gzip)

content-length

29184

content-type

text/html; charset=utf-8

cross-origin-opener-policy

same-origin

cross-origin-resource-policy

same-origin

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

afternic-com.mail.protection.outlook.com

Domain Information

afternic.com

Domain Age

26y 11m

Created

13.03.1999

Expires

13.03.2027

Last Updated

29.07.2025

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Data Protection Officer mentioned

Typography & Readability

gdsherpaVF4 fallback

76/100

Readability

/30

40/40

18px · LH 1.50

Hierarchy

/20

15/25

0.89x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

gdsherpaVF4 fallback

Sans16px

Body Font

gdsherpaVF4 fallback

Sans18px

Contrast Ratio

Reading Comfort

~36 CPL

Needs attention

16px

29px

18px

Augmented Fourth

Scale

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

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

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

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

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

Buy on MyFontsVariable Fonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(11)img6.wsimg.com(6)ds-aksb-a.akamaihd.net(1)

Website Identity

Facebook X (Twitter)

Sponsored

Last analyzed: 16 Feb 2026 at 23:54

Historical Analysis & Change Tracking