castlighthealth.com

https://castlighthealth.com· First analyzed 27 May 2026· Updated 27 May 2026

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castlighthealth.com

Mobile

Sponsored

Hosting Provider

WP Engine

wpengine.com

IP Address

141.193.213.21

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Austin, United States

ASN

AS209242

Organization

WPEngine, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns-cloud-d3.googledomains.com.ns-cloud-d1.googledomains.com.ns-cloud-d4.googledomains.com.ns-cloud-d2.googledomains.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

631 ms10%

Speed Index

820 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.9 MB

44 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

generatepress-childCustom

Technology Stack

15 Technologies Detected

Plugins

Analytics

Libraries

UI Components

Other

CSS Frameworks

Fonts

Tag Managers

Marketing

Advertising

CDN

SEO Analysis

A80/100

Meta Tags12/15

Content10/12

Headings6/8

Technical24/25

E-E-A-T2/7

Images4/7

Links2/5

URL5/5

Social4/5

Freshness4/4

Mobile4/4

Indexability3/3

castlighthealth.comcastlighthealth.com

Castlight Health | Smarter Benefits Navigation

Castlight helps employers, health plans, and employees navigate healthcare benefits with ease.

Title Length46 chars

Recommended: 50-60 chars (~272px / 580px)

Description Length94 chars

Recommended: 120-160 chars

Issues (0)

8 issues found

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Crawlability

Sitemap

Type: index

19 URLs

19 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

18/100

Poor

5 12

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

Sponsored

AI & LLM Readiness

D56/100

Bot Access

20/25

Machine Read.

13/25

Schema Data

8/25

Citation

15/25

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:4%

Words:910

Token eff.:Optimal

Sections/1K:17.6

Depth:1/5

Structured Data

4 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

sameAs entity links

Citation Readiness

Opening Summary150w

Descriptive Headingsavg 3.7w

Canonical URL

Open Graph2/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (7)

AI readiness recommendation preview...

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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.

89/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

18/20

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.

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.

60/100

197 mg

CO₂e / view

1.9 MB

Page Weight

50%

Cleaner Than

New Visitor

225 mg

Returning (cached)

112 mg

Annual (10K/mo)

23.6 kg

Emission Segments

Data Center

10 mg

Network

58 mg

Device

129 mg

Resource Breakdown

JavaScript

115.5 KB

Images

1.5 MB

CSS

267.0 KB

Fonts

1.5 KB

HTML

23.6 KB

Green Hosting Verified

WP Engine

Provider Match

4 recommendations

•Carbon footprint recommendation preview...

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A+

Security Score

98%Excellent

Static / Informational

HTTPS

WAF

86d

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

24.05.2026

Valid Until

22.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.castlighthealth.com

SHA-256 Fingerprint

E5:90:C6:4D:DB:11:51:C5:22:0D:B7:43:74:2E:63:FA:F1:3F:2D:0F...

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cache-control

🟡 600s(max-age=600, must-revalidate)

cf-cache-status

DYNAMIC

cf-ray🇫🇷 Paris

a0250b2a3dd42f5a-CDG

content-encoding

⚡ Brotli(br)

content-security-policy

default-src 'self' 'unsafe-inline' 'unsafe-eval' data: *.vim...

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (6)

aspmx.l.google.com

alt3.aspmx.l.google.com

castlighthealth-com.mail.protection.outlook.com

alt4.aspmx.l.google.com

+2 more

Domain Information

castlighthealth.com

Domain Age

16y 2m

Created

02.03.2010

Expires

02.03.2027

Last Updated

03.06.2025

Registrar

Squarespace Domains LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

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.

81/100

Mobile Friendly7 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...

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Typography & Readability

Lato

WCAG Partial

76/100

Readability

/30

22/30

20px · LH 1.33

Hierarchy

/20

20/20

3.2x ratio · ✓ H1→H6

WCAG

/25

19/25

1.37:1 min contrast

Performance

/25

15/25

1 font · 2 req

Heading Font

Lato

Sans64px

Body Font

Lato

Sans20px

Contrast Ratio

1.37:1

1 issue

Reading Comfort

~36 CPL

Narrow lines

64px

48px

20px

✅ Excellent readability: 20px body text is ideal for all devices.

⚠️ Tight line spacing (1.33). Increase to 1.4–1.6 for better readability.

⚠️ Hard to read: Flesch score 40/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 1.4:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 3.2x larger than body text.

GGoogle Fonts Buy on MyFontsFluid Type (rem)Flesch 40

Color Palette

12 unique colors

5.4:1 AA Light

#ffffff

Background· 65.1%

#6a687d

Secondary· 1.6%

#4522a7

Primary· 6.6%

#17153a

Secondary· 6.3%

#2c2e82

Secondary· 4.6%

#1678d2

Accent· 3.4%

#a57f6d

Secondary· 2.7%

#49325e

Secondary· 2.3%

Business & Marketing Stack

5 Tools Detected

Enterprise

CRM Systems

HubSpotMid-Market

Customer Relationship Management platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

LinkedIn AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

castlighthealth.com(4)snap.licdn.com(2)googletagmanager.com(2)js.hs-scripts.com(2)a.omappapi.com(2)

Website Identity