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

pubmatic.com

https://pubmatic.com· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

pubmatic.com

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

18.239.50.112

Server Location

🇳🇱 Amsterdam, The Netherlands

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

Caddy

CDN

CloudFront

Nameservers

dns3.p01.nsone.net.dns4.p01.nsone.net.dns1.p01.nsone.net.dns2.p01.nsone.net.

Performance

Page Speed

6.3 MB

70 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

Frontend

Framework

jQuery

Styling

Bootstrap

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

Amazon Web Services (AWS)

CDN

CloudFront

Progressive Web App

Web ManifestApple Touch IconTheme Color

Detected API Sources

https://player.vimeo.com/api/p...

Technology Stack

13 Technologies Detected

Plugins

Post Views Counter Pardot

CSS Frameworks

Analytics

Libraries

Other

UI Components

Tag Managers

Web Servers

Languages

SEO Analysis

A88/100

pubmatic.compubmatic.com

Programmatic Advertising Technology Company | PubMatic

Learn how PubMatic, a sell-side advertising technology company, maximizes customer value & puts you in control of your digital advertising business.

Title Length54 chars

Recommended: 50-60 chars

Description Length148 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

4 rules

Sitemap reference found

Sponsored

Security Score

61%Fair

Interactive

HTTPS

No WAF

275d

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+H3

Valid From

23.10.2025

Valid Until

21.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (4)

pubmatic.compubmatic.co.jp*.pubmatic.com*.pubmatic.co.jp

SHA-256 Fingerprint

CE:F8:30:F1:70:59:D7:43:58:87:CF:F4:21:2A:EB:FC:2E:8E:55:68...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

1995

alt-svc

h3=":443"; ma=86400

cache-control

🟡 1 Hours(max-age=3600, stale-while-revalidate=600, stale-if-error=864...)

content-type

text/html; charset=UTF-8

date

Thu, 19 Feb 2026 17:28:24 GMT

link

<https://pubmatic.com/wp-json/>; rel="https://api.w.org/", <...

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

pubmatic-com.mail.protection.outlook.com

Domain Information

pubmatic.com

Domain Age

19y 1m

Created

29.12.2006

Expires

08.09.2034

Last Updated

11.07.2025

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

TVNordEF-BlackCon + TVNordEF-Regular

81/100

Readability

/30

40/40

20px · LH 1.45

Hierarchy

/20

18/25

2.7x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

TVNordEF-BlackCon

Sans54px

Body Font

TVNordEF-Regular

Sans20px

Contrast Ratio

Reading Comfort

~35 CPL

Needs attention

54px

36px

26px

20px

✅ Excellent readability: 20px body text is ideal for all devices.

✅ Optimal line spacing: 1.45 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.7x larger than body text.

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

✅ Protected text on images: Using gradient for readability.

⚠️ Cramped layout: 13 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

29 Resources

Scripts

Styles

Async

Defer

Top Script Sources

pubmatic.com(13)cdnjs.cloudflare.com(2)googletagmanager.com(1)global.ketchcdn.com(1)cdn.ketchjs.com(1)

Website Identity

Facebook X (Twitter)LinkedIn

Sponsored

Last analyzed: 19 Feb 2026 at 18:01

Historical Analysis & Change Tracking