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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pbssocal.org

https://pbssocal.org· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

pbssocal.org

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

75.2.51.51

Server Location

🇺🇸 Seattle, United States

ASN

AS16509

Organization

AWS Global Accelerator (GLOBAL)

Server

Envoy

CDN

CloudFront

Nameservers

red.pbssocal.org.orange.pbssocal.org.green.pbssocal.org.murphy.pbssocal.org.+3 more

Performance

Page Speed

275 KB

82 requests

Image Optimization

Lazy LoadWebPResponsiveimgix

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Amazon Web Services (AWS)

CDN

CloudFront

Technology Stack

12 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Fathom Analytics Microsoft Clarity Fathom

Advertising

Google Ads Pinterest Tag

Frameworks

CSS Frameworks

Tag Managers

Customer Support

SEO Analysis

B78/100

pbssocal.orgpbssocal.org

PBS SoCal — Your Home for PBS in Southern California

PBS SoCal is the home to PBS for Greater Los Angeles Area and Southern California. We deliver the full schedule of PBS Programs, plus local programs.

Title Length52 chars

Recommended: 50-60 chars

Description Length149 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

240 URLs

robots.txt

10 rules

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

223d

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

01.09.2025

Valid Until

30.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

prod.kcet.psdops.comwww.broken-bread.orgwww.undefundable.comwww.borderblaster.orgwww.linktv.orgwww.family-math.orgwww.pbssocal.orgwww.newdivas.org+12 more

SHA-256 Fingerprint

89:D8:57:43:EB:90:07:29:18:02:22:97:BD:EB:98:CC:44:CE:C4:34...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

213

content-encoding

📦 Gzip(gzip)

content-type

text/html;charset=UTF-8

date

Thu, 19 Feb 2026 19:27:43 GMT

server

istio-envoy

strict-transport-security

max-age=31536000; includeSubDomains

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

pbssocal-org.mail.protection.outlook.com

Domain Information

pbssocal.org

Domain Age

15y 3m

Created

19.11.2010

Expires

19.11.2028

Last Updated

08.08.2024

Registrar

Network Solutions, 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

pbs-sans + sans-serif

58/100

Readability

/30

40/40

18px · LH 1.45

Hierarchy

/20

15/25

1.33x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

pbs-sans

Sans24px

Body Font

sans-serif

Sans18px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

24px

36px

21px

18px

Minor Second

Scale

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

✅ Optimal line spacing: 1.45 ratio ensures comfortable reading.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

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

✅ Consistent design: Single font family with weight variations is a modern best practice.

⚠️ Risky: Text appears on background images without overlay protection.

Buy on MyFonts

Business & Marketing Stack

6 Tools Detected

Enterprise

Behavior Analytics

FathomSMB

Google Tag ManagerFree

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

14 Resources

Scripts

Styles

Async

Defer

Top Script Sources

kcet.brightspotcdn.com(3)googletagmanager.com(2)connect.facebook.net(2)securepubads.g.doubleclick.net(2)google-analytics.com(1)

Website Identity

Facebook Instagram

Sponsored

Last analyzed: 19 Feb 2026 at 19:31

Historical Analysis & Change Tracking