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

nielseniq.com

https://nielseniq.com· First analyzed 15 Feb 2026· Updated 15 Feb 2026

Export

nielseniq.com

Mobile

Sponsored

Hosting Provider

Akamai Technologies

IP Address

23.209.125.177

Server Location

🇳🇱 Haarlem, The Netherlands

ASN

AS20940

Organization

Akamai Technologies

Server

Nginx

Nameservers

edns64.ultradns.com.edns64.ultradns.net.edns64.ultradns.org.edns64.ultradns.biz.

Performance

Page Speed

2.6 MB

37 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.1

cms

NewCo Base Themev10.0.0

by Nielsen NewCo Dev Team

View Theme

Technology Stack

25 Technologies Detected

Plugins

Niq Hubspot Forms Niq Core Block Extensions Logic Hop Dearpdf Lite Niq Blocks Nelio Ab Testing

Analytics

Advertising

Google Ads Twitter Ads

Libraries

jQuery

Other

Mapbox GL

Other

AOS (Animate On Scroll)

CSS Frameworks

Tag Managers

Customer Support

Marketing

Other

Payments

Web Servers

SEO Analysis

A82/100

nielseniq.comnielseniq.com

NIQ - The Full View™ of Consumer Intelligence

Identify your next big move with the world's most comprehensive market research and consumer insights.

Title Length45 chars

Recommended: 50-60 chars

Description Length102 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (4/4)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

24 URLs

robots.txt

4 rules

Sitemap reference found

Sponsored

Security Score

10%Critical

Critical / Transactional

HTTPS

No WAF

84d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

09.02.2026

Valid Until

10.05.2026

Subject Alternative Names (1)

nielseniq.com

SHA-256 Fingerprint

32:53:10:2C:19:72:21:19:5D:93:CE:19:7F:A6:61:60:BB:E4:0A:DE...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🟡 300s(max-age=300, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-length

38740

content-security-policy

frame-ancestors 'self';

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

nielseniq-com.mail.protection.outlook.com

Domain Information

nielseniq.com

Domain Age

5y 7m

Created

24.06.2020

Expires

24.06.2026

Last Updated

23.05.2024

Registrar

MarkMonitor 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

Aktiv Grotesk

84/100

Readability

/30

40/40

16px · LH 1.80

Hierarchy

/20

21/25

3.25x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Aktiv Grotesk

Sans52px

Body Font

Aktiv Grotesk

Sans16px

Contrast Ratio

Reading Comfort

~32 CPL

Needs attention

52px

40px

32px

52px

16px

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

✅ Optimal line spacing: 1.80 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.2x larger than body text.

✅ 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

4 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Reviews & Social Proof

TrustpilotMid-Market

Customer reviews and testimonials

Sponsored

Scripts & Styles

23 Resources

Scripts

Styles

Async

Defer

Top Script Sources

nielseniq.com(6)googletagmanager.com(2)experiments.parsely.com(1)stats.wp.com(1)accessibilityserver.org(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn

Sponsored

Last analyzed: 15 Feb 2026 at 05:59

Historical Analysis & Change Tracking