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

wttw.com

https://wttw.com· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

wttw.com

Sponsored

Hosting Provider

Pantheon

cloudflare.com

IP Address

172.66.41.44

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

doug.ns.cloudflare.com.lily.ns.cloudflare.com.

Performance

Page Speed

1.8 MB

98 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Drupal

Technology Stack

12 Technologies Detected

CSS Frameworks

Analytics

Advertising

Google Ads Google AdSense

Libraries

Icon Libraries

Fonts

Tag Managers

CDN

Customer Support

SEO Analysis

C64/100

wttw.comwttw.com

WTTW | Chicago’s PBS station streaming News, Kids, Drama, and Docum...

WTTW is Chicago’s PBS station featuring Chicago and Midwest award-winning news and journalism, local history and neighborhood tours with Geoffrey Baer, dinin...

Title truncated. Description truncated.

Title Length75 chars

Recommended: 50-60 chars

Description Length374 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

55 rules

Sponsored

Security Score

61%Fair

Interactive

HTTPS

WAF

61d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

20.01.2026

Valid Until

20.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

wttw.com*.wttw.com

SHA-256 Fingerprint

16:DB:15:26:7F:1A:1C:C4:57:40:04:2B:FF:E9:30:73:BF:99:9D:C7...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin

age

291

alt-svc

h3=":443"; ma=86400

cache-control

🟡 1 Hours(private, max-age=3600, must-revalidate)

cf-cache-status

HIT

cf-ray🇩🇪 Frankfurt

9cf4147428e63655-FRA

Good Warning Issue

Email Infrastructure

Mimecast

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

us-smtp-inbound-2.mimecast.com

us-smtp-inbound-1.mimecast.com

Domain Information

wttw.com

Domain Age

30 years

Created

15.02.1996

Expires

16.02.2033

Last Updated

05.05.2025

Registrar

Cloudflare, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

CookieYes

Cookie Consent Banner

CookieYes

GDPR Indicators

Cookie consent banner detected

CMP: CookieYes

Typography & Readability

Heebo + serif

80/100

Readability

/30

32/40

15px · LH 1.60

Hierarchy

/20

25/25

2.13x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Heebo

Serif32px

Body Font

serif

Serif15px

Contrast Ratio

Reading Comfort

~42 CPL

Needs attention

32px

17px

14px

16px

15px

⚠️ Small text: 15px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.1x larger than body text.

✅ Good performance: Using 2 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.

GGoogle Fonts

Business & Marketing Stack

7 Tools Detected

Enterprise

Marketing Automation

ActiveCampaignMid-Market

MailchimpSMB

Email marketing and automation platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

CookieYesSMB

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(7)connect.facebook.net(3)pagead2.googlesyndication.com(2)cdn-cookieyes.com(2)diffuser-cdn.app-us1.com(1)

Website Identity

wttw.com

30 years old

Cloudflare, Inc.📧 Mimecast

Social Profiles

Facebook X (Twitter)Instagram

Sponsored

Last analyzed: 17 Feb 2026 at 08:58

Historical Analysis & Change Tracking