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

griffithobservatory.org

https://griffithobservatory.org· First analyzed 26 Apr 2026· Updated 26 Apr 2026

Export

Mobile

Sponsored

Hosting Provider

Kinsta

cloudflare.com

IP Address

162.159.135.42

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns-307.awsdns-38.com.ns-763.awsdns-31.net.ns-1501.awsdns-59.org.ns-2018.awsdns-60.co.uk.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.1 s10%

Speed Index

1.4 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3.3 MB

42 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

Griffith Observatoryv1.0.0Custom

by Friendly Design Co

View Theme

Technology Stack

12 Technologies Detected

Plugins

Events Calendar Pro Wp Members The Events Calendar Google Site Kit

Yoast SEO

Analytics

Google Analytics

Matomo Microsoft Clarity

Libraries

CSS Frameworks

Tag Managers

CDN

SEO Analysis

B76/100

Meta Tags10/15

Content11/12

Headings6/8

Technical22/25

E-E-A-T2/7

Images3/7

Links2/5

URL5/5

Social4/5

Freshness4/4

Mobile4/4

Indexability3/3

griffithobservatory.orggriffithobservatory.org

Griffith Observatory - Southern California’s gateway to the cosmos!

Griffith Observatory is southern California's gateway to the cosmos! Visitors may look through telescopes, explore exhibits, see live shows in the Samuel Osc...

Description truncated.

Title Length67 chars

Recommended: 50-60 chars (~413px / 580px)

Description Length240 chars

Recommended: 120-160 chars

Issues (0)

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

8 URLs

8 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

16/100

Poor

5 13

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

C60/100

Bot Access

20/25

Machine Read.

18/25

Schema Data

8/25

Citation

14/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

navheader/footer

Text ratio:6%

Words:961

Token eff.:Optimal

Sections/1K:7.3

Depth:2/5

Structured Data

5 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

sameAs entity links

Citation Readiness

Opening Summary26w

Descriptive Headingsavg 4.4w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

AI readiness recommendation preview...

Upgrade to view recommendations

Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

74/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

15/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

10/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

15/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

9/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

5/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

4 recommendations

•Accessibility recommendation preview...

Upgrade to view recommendations

Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

39/100

342 mg

CO₂e / view

3.3 MB

Page Weight

30%

Cleaner Than

New Visitor

391 mg

Returning (cached)

196 mg

Annual (10K/mo)

41.1 kg

Emission Segments

Data Center

17 mg

Network

101 mg

Device

225 mg

Resource Breakdown

JavaScript

76.7 KB

Images

3.2 MB

CSS

39.0 KB

HTML

19.1 KB

Other

300 B

Green Hosting Verified

Something Familiar

GWF Verified

6 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

81%Very Good

Interactive

HTTPS

WAF

83d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

19.04.2026

Valid Until

18.07.2026

Subject Alternative Names (2)

*.griffithobservatory.lacity.govgriffithobservatory.lacity.gov

SHA-256 Fingerprint

55:67:F7:18:B6:61:D0:CB:BB:88:6E:2D:CB:0E:42:8D:A9:B3:FF:7D...

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cf-cache-status

DYNAMIC

cf-ray

9f27544e09afcec1-SJC

content-encoding

⚡ Brotli(br)

content-security-policy

frame-ancestors 'self'

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

griffithobservatory.org

Domain Age

28y 3m

Created

30.01.1998

Expires

29.01.2029

Last Updated

24.12.2023

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

64/100

Mobile Friendly1 breakpoint

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0, minimal-ui

1 recommendation

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

nimbus-sans + IBM Plex Sans

WCAG Partial

67/100

Readability

/30

21/30

23px · LH 1.67

Hierarchy

/20

18/20

3x ratio

WCAG

/25

17/25

1.12:1 min contrast

Performance

/25

11/25

3 fonts · 1 req

Heading Font

nimbus-sans

Sans68px

Body Font

IBM Plex Sans

Sans23px

Contrast Ratio

1.12:1

5 issues

Reading Comfort

~46 CPL

Optimal (45–75)

68px

43px

30px

35px

23px

✅ Excellent readability: 22px body text is ideal for all devices.

✅ Optimal line length: ~46 chars/line (ideal 45–75 CPL).

⚠️ Hard to read: Flesch score 42/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 5 elements below WCAG AA threshold (min 1.1:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 3.0x larger than body text.

Buy on MyFontsFluid Type (rem)Flesch 43

Color Palette

10 unique colors

18.73:1 AAA Dark

#121212

Background· 20%

#ffffff

Text· 13.599999999999998%

#000002

Primary· 16.4%

#aa878b

Secondary· 12.5%

#c49c95

Secondary· 8.7%

#705858

Secondary· 6.3%

#383543

Secondary· 6.1%

#a9c0af

Secondary· 3.6%

Business & Marketing Stack

4 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

Microsoft ClarityFree

Matomo (Piwik)Mid-Market

User behavior and product analytics

Sponsored

Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

griffithobservatory.lacity.gov(6)googletagmanager.com(4)scripts.clarity.ms(1)analytics.wpmucdn.com(1)clarity.ms(1)

Website Identity