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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apartmenttherapy.com

https://apartmenttherapy.com· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

Mobile

Sponsored

Hosting Provider

Fastly, Inc.

IP Address

151.101.2.49

Server Location

🇨🇦 Montreal, Canada

ASN

AS54113

Organization

Fastly, Inc.

Server

Google Frontend

CDN

Fastly

Nameservers

ns-1005.awsdns-61.net.ns-1378.awsdns-44.org.ns-1656.awsdns-15.co.uk.ns-203.awsdns-25.com.

Performance

Page Speed

979 KB

138 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

JAMstack

⚙️ SSR

Decoupled

Frontend

Framework

Next.js

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

Fastly, Inc.

CDN

Fastly

Progressive Web App

Web ManifestApple Touch IconTheme Color

Detected API Sources

/jAYekY18/xhr/api/v1/collector...

Technology Stack

14 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel

Fonts

Google Fonts Adobe Fonts (Typekit)

Advertising

Google Ads Google AdSense

Meta Frameworks

Libraries

Other

CSS Frameworks

Icon Libraries

Tag Managers

Languages

SEO Analysis

A82/100

apartmenttherapy.comapartmenttherapy.com

Apartment Therapy | The home you love starts here.

Lifestyle and interior design community sharing design lessons, DIY how-tos, shopping guides and expert advice for creating a happy, beautiful home.

Title Length50 chars

Recommended: 50-60 chars

Description Length148 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

2 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

8 rules

Sitemap reference found

Allows all crawlers

Sponsored

Security Score

61%Fair

Interactive

HTTPS

No WAF

149d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

12.11.2025

Valid Until

12.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (18)

apartmenttherapy.com*.apartmenttherapy.comthekitchn.com*.thekitchn.comcubbyathome.com*.cubbyathome.comdormtherapy.com*.dormtherapy.com+10 more

SHA-256 Fingerprint

C1:78:7E:A1:52:D4:D8:45:02:6B:29:7D:18:96:4F:94:7B:81:53:BC...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

content-type

text/html; charset=utf-8

x-cloud-trace-context

83081e24b9ad6bdc15295953aa6935f0/14446505844354596902;o=1

strict-transport-security

max-age=15552000; includeSubDomains

x-content-type-options

nosniff

x-download-options

noopen

x-frame-options

SAMEORIGIN

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (7)

alt2.aspmx.l.google.com

aspmx5.googlemail.com

alt1.aspmx.l.google.com

aspmx3.googlemail.com

+3 more

Domain Information

apartmenttherapy.com

Domain Age

24y 2m

Created

05.12.2001

Expires

05.12.2026

Last Updated

06.12.2025

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

Typography & Readability

-apple-system

67/100

Readability

/30

32/40

14px · LH 1.40

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

17/20

System fonts

Heading Font

-apple-system

Sans

Body Font

-apple-system

Sans14px

Contrast Ratio

Reading Comfort

~55 CPL

Optimal (45–75)

19px

14px

60px

14px

Major Sixth

Scale

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

✅ 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: ~55 characters per line is comfortable to read.

AAdobe Fonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(12)googletagmanager.com(2)rules.quantcount.com(1)sb.scorecardresearch.com(1)secure.quantserve.com(1)

Website Identity

apartmenttherapy.com

24 years old

GoDaddy.com, LLC📧 Google Workspace

Social Profiles

Facebook Instagram TikTok Pinterest

Sponsored

Last analyzed: 13 Feb 2026 at 02:15

Historical Analysis & Change Tracking