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

complex.com

https://complex.com· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

complex.com

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

3.164.206.55

Server Location

🇫🇮 Helsinki, Finland

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

CDN

Fastly

Nameservers

ns-696.awsdns-23.net.ns-1171.awsdns-18.org.ns-152.awsdns-19.com.ns-1942.awsdns-50.co.uk.

Performance

Page Speed

2.5 MB

227 requests

Image Optimization

Lazy LoadAVIFResponsiveVercel Image Optimization

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Tailwind CSS

CMS

Shopify

Infrastructure

Hosting

Amazon Web Services (AWS)

CDN

Fastly

Technology Stack

15 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Segment Amplitude

Advertising

Google Ads TikTok Pixel Snapchat Pixel Microsoft Advertising

Meta Frameworks

CSS Frameworks

Tag Managers

Email Marketing

Customer Support

Security

SEO Analysis

A84/100

complex.comcomplex.com

Complex | Rap Music, Sneakers, Streetwear Style, Internet Culture News

Find the latest entertainment news and the best in rap music, pop and internet culture, sneakers, style and streetwear, and sports culture. Complex is the be...

Description truncated.

Title Length70 chars

Recommended: 50-60 chars

Description Length456 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

145 rules

Sitemap reference found

Sponsored

Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

67d

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

21.01.2026

Valid Until

21.04.2026

Subject Alternative Names (1)

*.complex.com

SHA-256 Fingerprint

CA:50:10:A0:26:DA:6D:B4:B0:00:A6:5B:09:1B:CA:0F:38:DA:B2:B4...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

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HTTP Headers

Developer Console

accept-ranges

bytes

age

371

cache-control

🔴 No Cache(private, no-cache, no-store, max-age=0, must-revalidate)

cache-tag

sites-prod-ui,homepage,landing

content-encoding

📦 Gzip(gzip)

content-length

148714

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

alt4.aspmx.l.google.com

alt2.aspmx.l.google.com

aspmx.l.google.com

alt3.aspmx.l.google.com

+1 more

Domain Information

complex.com

Domain Age

28y 8m

Created

21.06.1997

Expires

01.09.2026

Last Updated

28.07.2025

Registrar

Amazon Registrar, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Typography & Readability

inter_fallback + Helvetica

63/100

Readability

/30

32/40

16px · LH 1.25

Hierarchy

/20

8/25

1x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

inter_fallback

Sans16px

Body Font

Helvetica

Sans16px

Contrast Ratio

Reading Comfort

~49 CPL

Optimal (45–75)

16px

32px

28px

16px

Major Second

Scale

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

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

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

✅ Protected text on images: Using gradient for readability.

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

⚠️ Cramped layout: 41 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

8 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Pinterest AdsMid-Market

TikTok PixelMid-Market

Microsoft AdsEnterprise

Reddit PixelMid-Market

Google AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

OsanoMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

evs.segment.complex.com(4)s0.2mdn.net(3)ssl.p.jwpcdn.com(3)s.pinimg.com(2)googletagmanager.com(2)

Website Identity

complex.com

28 years old

Amazon Registrar, Inc.📧 Google Workspace

Social Profiles

Facebook X (Twitter)Instagram TikTok

Sponsored

Last analyzed: 12 Feb 2026 at 20:53

Historical Analysis & Change Tracking