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

grailed.com

https://grailed.com· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

grailed.com

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.16.233.118

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

brad.ns.cloudflare.com.carol.ns.cloudflare.com.

Performance

Page Speed

1008 KB

192 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

JAMstack

🔀 Hybrid

Decoupled

Frontend

Framework

Next.js

Styling

Tailwind CSS

API

Data Source

Headless CMS

Contentful

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Detected API Sources

//images.ctfassets.net/bdvz0u6...

Technology Stack

10 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Segment

Meta Frameworks

CSS Frameworks

Advertising

Payments

CDN

Security

SEO Analysis

B70/100

grailed.comgrailed.com

Grailed: Online Marketplace to Buy Fashion

Buy, sell and discover digitally verified pieces from top brands, spanning designer, vintage, streetwear and more. Shop men's and women's clothing on Grailed...

Description truncated.

Title Length42 chars

Recommended: 50-60 chars

Description Length238 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

3 issues found

Upgrade to view details

Sponsored

Security Score

35%Critical

Critical / Transactional

HTTPS

WAF

56d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

18.01.2026

Valid Until

18.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (5)

grailed.com*.grailed.com*.info.grailed.com*.mail.grailed.com*.staging.grailed.com

SHA-256 Fingerprint

C1:AD:4F:76:3A:A3:C5:1F:3E:EE:D3:3B:D7:A1:C4:D1:47:EC:EE:F0...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

date

Fri, 20 Feb 2026 04:42:50 GMT

content-type

text/html; charset=utf-8

content-encoding

📦 Gzip(gzip)

cache-control

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

referrer-policy

strict-origin-when-cross-origin

strict-transport-security

max-age=31536000; includeSubDomains

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

alt2.aspmx.l.google.com

aspmx2.googlemail.com

aspmx3.googlemail.com

alt1.aspmx.l.google.com

+1 more

Domain Information

grailed.com

Domain Age

12y 2m

Created

12.12.2013

Expires

12.12.2026

Last Updated

15.09.2022

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Typography & Readability

SF Pro Text

76/100

Readability

/30

40/40

16px · LH 1.40

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

SF Pro Text

Sans

Body Font

SF Pro Text

Sans16px

Contrast Ratio

Reading Comfort

~49 CPL

Optimal (45–75)

20px

16px

14px

16px

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

✅ Optimal line spacing: 1.40 ratio ensures comfortable reading.

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

✅ 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.

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

Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Enterprise

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(13)cdn.segment.com(3)js.appboycdn.com(1)cdn.cookielaw.org(1)connect.facebook.net(1)

Website Identity

Facebook Instagram LinkedIn YouTube

Sponsored

Last analyzed: 20 Feb 2026 at 04:43

Historical Analysis & Change Tracking