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cshl.edu

https://cshl.edu· First analyzed 23 Apr 2026· Updated 23 Apr 2026
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cshl.edu
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Mobile

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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.cshl.edu.exmon1.cshl.edu.ns2.cshl.edu.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
383 ms10%
Speed Index
498 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
17.3 MB
71 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms
cshl-coresiteCustom

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

21 Technologies Detected

Plugins

9
3Sv Search PluginCookie Law Info
Contact Form 7
Cf7 Repeatable FieldsWf Magnific LightboxCf7 Datetimepicker ProCf7 Conditional FieldsMy Calendar
Yoast SEO

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

CSS Frameworks

2
Bootstrap
Tailwind CSS

Libraries

1
jQueryv2.2.4

Other

1
lazysizes

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

CDN

1
Cloudflare

Security

1
reCAPTCHA

SEO Analysis

B73/100
20
6
3
Meta Tags9/15
Content10/12
Headings3/8
Technical24/25
E-E-A-T2/7
Images1/7
Links5/5
URL5/5
Social3/5
Freshness4/4
Mobile4/4
Indexability3/3
C
cshl.educshl.edu

CSHL Home Page | Cold Spring Harbor Laboratory

No description available for this page.

Title Length46 chars

Recommended: 50-60 chars (~281px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

  • • 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 (6/11) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

29 URLs

29 sub-sitemaps

robots.txt

30 rules

Sitemap reference found

Local SEO

Local Search Readiness

36/100
Needs Work
11 7

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AI & LLM Readiness

D53/100
Bot Access
17/25
Machine Read.
7/25
Schema Data
8/25
Citation
21/25

AI Bot Access

9/14 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
Text ratio:4%
Words:1,187
Token eff.:Optimal

Structured Data

4 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction
sameAs entity links

Citation Readiness

Opening Summary21w
Descriptive Headingsavg 3.1w
Canonical URL
Open Graph1/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
AI readiness recommendation preview...
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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
84/100
12
Passed
3
Critical
0
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
6/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •Accessibility recommendation preview...
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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.
42/100
F
1.79 g
CO₂e / view
17.3 MB
Page Weight
5%
Cleaner Than
New Visitor
2.04 g
vs
Returning (cached)
1.02 g
Annual (10K/mo)
214.3 kg
Emission Segments
Data Center
88 mg
Network
525 mg
Device
1.17 g
Resource Breakdown
JavaScript
288.2 KB
Images
140.2 KB
CSS
1.8 MB
HTML
50.0 KB
Other
15.0 MB
Green Hosting Verified
WP Engine
Provider Match
4 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

26%Critical
Interactive

HTTPS

WAF

83d

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

16.04.2026

Valid Until

15.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.cshl.edu

SHA-256 Fingerprint

07:25:59:1A:CA:CB:9D:53:07:4C:2B:C3:95:0F:96:EE:0F:85:34:30...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ch
Sec-CH-UA-Mobile
alt-svc
h3=":443"; ma=86400
cache-control
🟡 600s(max-age=600, must-revalidate)
cf-cache-status
DYNAMIC
cf-ray🇩🇪 Frankfurt
9f09cb709812972c-FRA
content-encoding
⚡ Brotli(br)
Good Warning Issue

Email Infrastructure

Mimecast

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

usb-smtp-inbound-1.mimecast.com
usb-smtp-inbound-2.mimecast.com

Domain Information

cshl.edu

DNSSEC
Not Enabled

Privacy & Compliance

CookieYes

Cookie Consent Banner
CookieYes
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: CookieYes
Privacy policy page linked

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.
B
75/100
Mobile Friendly16 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
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Inter + Source Sans Pro

WCAG Partial
52/100
Readability
/30
20/30

16px · LH 1.31

Hierarchy
/20
8/20
WCAG
/25
12/25

1:1 min contrast

Performance
/25
12/25

3 fonts · 11 req

Heading Font

Inter

Sans

Body Font

Source Sans Pro

Sans16px

Contrast Ratio

1:1

17 issues

Reading Comfort

~36 CPL

Narrow lines
50px
h2
28px
h3
16px
h4
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

⚠️ Tight line spacing (1.31). Increase to 1.4–1.6 for better readability.

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 17 elements below WCAG AA threshold (min 1.0:1).

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

⚠️ Fluid type without rem: clamp() detected but missing rem units. May fail WCAG 1.4.4 zoom test.

Buy on MyFontsFluid TypeFlesch 0

Color Palette

14 unique colors
Light
#180b07
Accent· 13.9%
#332118
Secondary· 10.5%
#ffffff
Primary· 0%
#b29982
Secondary· 10.4%
#024982
Primary· 7.9%
#6d543a
Secondary· 7.5%
#794216
Accent· 7.4%
#d9e2e1
Secondary· 6.8%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

1
GDPR Cookie ConsentFree

Cookie consent and privacy compliance tools

2

Categories

3

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

9 Resources

1
Scripts
8
Styles
1
Async
0
Defer

Top Script Sources

nitroscripts.com(1)

Website Identity

Cold Spring Harbor Laboratory

Cold Spring Harbor Laboratory

Organization

Founded in 1890, Cold Spring Harbor Laboratory (CSHL) is a preeminent international research institution, achieving breakthroughs in molecular biology and genetics and enhancing scientific knowledge worldwide.

1-516-367-8800
www.cshl.edu/
Location detected: 🇺🇸 United Statesvia ip
📧 Mimecasten-US

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Last analyzed: 23 Apr 2026 at 03:31

Historical Analysis & Change Tracking