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

apartmentguide.com

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

Export

apartmentguide.com

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

18.165.122.114

Server Location

🇮🇪 Dublin, Ireland

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

hidden

CDN

CloudFront

Nameservers

ns-36.awsdns-04.com.ns-990.awsdns-59.net.ns-1276.awsdns-31.org.ns-1747.awsdns-26.co.uk.

Performance

Page Speed

901 KB

126 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Hybrid

🔀 Hybrid

Frontend

Framework

Next.js

Infrastructure

Hosting

Amazon Web Services (AWS)

CDN

CloudFront

Technology Stack

5 Technologies Detected

Analytics

Meta Frameworks

CSS Frameworks

Tag Managers

SEO Analysis

C64/100

apartmentguide.comapartmentguide.com

ApartmentGuide - The Best Apartments For Rent

Use the finest apartment finder tool to search thousands of listings across the country. See ratings/reviews, HD photos/videos, compare prices, and view floo...

Description truncated.

Title Length45 chars

Recommended: 50-60 chars

Description Length165 chars

Recommended: 120-160 chars

Issues (0)

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

42 rules

Sitemap reference found

Allows all crawlers

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

296d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

14.11.2025

Valid Until

13.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (16)

prod.apartmentguide.comagleadmail.comapt.gd*.ag.reviews*.apartmentguide.netapi.apartmentguide.comag.reviewsapartmentguide.net+8 more

SHA-256 Fingerprint

FE:9D:AC:7B:A2:2C:9F:90:40:BB:3F:03:80:C1:58:36:CF:DE:A8:CB...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

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

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Fri, 20 Feb 2026 07:00:00 GMT

link

<https://i.apartmentguide.com>; rel=preconnect, <https://www...

server

hidden

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

aspmx2.googlemail.com

alt1.aspmx.l.google.com

alt2.aspmx.l.google.com

aspmx.l.google.com

+1 more

Domain Information

apartmentguide.com

Domain Age

27y 4m

Created

09.10.1998

Expires

08.10.2027

Last Updated

06.09.2025

Registrar

MarkMonitor Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Space Grotesk + Inter

88/100

Readability

/30

40/40

18px · LH 1.75

Hierarchy

/20

25/25

3.11x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Space Grotesk

Sans56px

Body Font

Inter

Sans18px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

56px

24px

18px

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

✅ Optimal line spacing: 1.75 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.1x larger than body text.

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

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

⚠️ Cramped layout: 29 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(18)googletagmanager.com(1)datadoghq-browser-agent.com(1)

Website Identity

apartmentguide.com

27 years old

MarkMonitor Inc.📧 Google Workspace

Social Profiles

Facebook X (Twitter)Instagram Pinterest

Sponsored

Last analyzed: 20 Feb 2026 at 07:00

Historical Analysis & Change Tracking