Back to Search
ligo.org favicon

ligo.org

https://ligo.org· First analyzed 30 Apr 2026· Updated 30 Apr 2026
Export
ligo.org
Desktop screenshot of ligo.org
Mobile screenshot of ligo.org
Mobile

Sponsored

Hosting Provider

WP Engine
wpengine.com

IP Address

141.193.213.20

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Austin, United States

ASN

AS209242

Organization

WPEngine, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns1.ligo-la.caltech.edu.ns1.ligo-wa.caltech.edu.mercutio.ni.caltech.edu.ligo.ligo.caltech.edu.+1 more

Performance

99

Core Web Vitals

Weight

First Contentful Paint
835 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
6 MB
32 requests

Image Optimization

WebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms
lemmony

Technology Stack

8 Technologies Detected

Plugins

4
Lemmony CompanionAutomatic Youtube Gallery PremiumSharethis Share ButtonsReal Time Auto Find And Replace

Libraries

1
jQueryv3.7.1

CSS Frameworks

1
Tailwind CSS

Social

1
ShareThis

CDN

1
Cloudflare

SEO Analysis

D48/100
14
9
4
Meta Tags7/15
Content8/12
Headings3/8
Technical12/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social0/5
Freshness2/4
Mobile3/4
Indexability0/3
L
ligo.orgligo.org

LSC – LIGO Scientific Collaboration

No description available for this page.

Title Length35 chars

Recommended: 50-60 chars (~207px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (4)

  • • Missing meta description — important for click-through rates in SERPs
  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (5/6) — critical for accessibility and SEO

13 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

4 rules

Local SEO

Local Search Readiness

5/100
Poor
2 13 2

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

Sponsored

AI & LLM Readiness

F36/100
Bot Access
20/25
Machine Read.
4/25
Schema Data
0/25
Citation
12/25

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.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
nav
Text ratio:2%
Words:287
Token eff.:Too Short
Sections/1K:10.5
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary65w
Descriptive Headingsavg 6.1w
Canonical URL
Open Graph0/3
Twitter Card0/3
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.
A
83/100
14
Passed
2
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
13/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
15/15
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
15/15
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.
1 recommendation
  • •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.
43/100
F
623 mg
CO₂e / view
6.0 MB
Page Weight
5%
Cleaner Than
New Visitor
712 mg
vs
Returning (cached)
356 mg
Annual (10K/mo)
74.7 kg
Emission Segments
Data Center
31 mg
Network
183 mg
Device
409 mg
Resource Breakdown
JavaScript
98.9 KB
Images
5.4 MB
CSS
528.2 KB
HTML
22.8 KB
Green Hosting Verified
WP Engine
Provider Match
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

31%Critical
Interactive

HTTPS

WAF

69d

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

09.04.2026

Valid Until

08.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

ligo.org

SHA-256 Fingerprint

2D:82:57:33:95:7C:3B:79:71:67:59:93:3A:19:C3:3A:1E:E7:64:30...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cache-control
🟡 600s(max-age=600, must-revalidate)
cf-cache-status
DYNAMIC
cf-ray🇮🇹 Milan
9f434fa33cf9edb8-MXP
content-encoding
⚡ Brotli(br)
content-type
text/html; charset=UTF-8
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (2)

pmg.ligo-la.caltech.edu
singularity.ligo.org

Domain Information

ligo.org

Domain Age
24y 3m

Created

23.01.2002

Expires

23.01.2029

Last Updated

25.06.2025

Registrar

Domain.com - Network Solutions, LLC

DNSSEC
Not Enabled

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.
A
85/100
Mobile Friendly8 breakpoints
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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Plus Jakarta Sans

WCAG Partial
62/100
Readability
/30
23/30

18px · LH 1.60

Hierarchy
/20
6/20
WCAG
/25
18/25

1:1 min contrast

Performance
/25
15/25

1 font · 3 req

Heading Font

Plus Jakarta Sans

Sans

Body Font

Plus Jakarta Sans

Sans18px

Contrast Ratio

1:1

8 issues

Reading Comfort

~32 CPL

Narrow lines
72px
h2
24px
h3
18px
p

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

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 21/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 8 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

Buy on MyFontsFluid Type (rem)Flesch 21

Color Palette

5 unique colors
3.62:1 AA Large Light
#ffffff
Text· 13.8%
#8c8678
Secondary· 4.3%
#4c3b2a
Primary· 54%
#6f4c34
Secondary· 20.3%
#2b2621
Text· 7.7%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

Social Media

1
ShareThisFree

Social widgets and sharing tools

2

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

Sponsored

Scripts & Styles

18 Resources

12
Scripts
6
Styles
1
Async
0
Defer

Top Script Sources

ligo.org(10)buttons-config.sharethis.com(1)platform-api.sharethis.com(1)

Website Identity

ligo.org

[email protected]
24 years old
Location detected: 🇺🇸 United Statesvia ip
Domain.com - Network Solutions, LLCen-US

Sponsored

Last analyzed: 30 Apr 2026 at 03:03

Historical Analysis & Change Tracking