prebid.org

https://prebid.org· First analyzed 09 May 2026· Updated 09 May 2026

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prebid.org

Mobile

Sponsored

Hosting Provider

WP Engine

wpengine.com

IP Address

141.193.213.11

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Austin, United States

ASN

AS209242

Organization

WPEngine, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns1.dnsimple.com.ns2.dnsimple-edge.net.ns3.dnsimple.com.ns4.dnsimple-edge.org.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

408 ms10%

Speed Index

530 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

70 KB

74 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

mai-successCustom

Technology Stack

19 Technologies Detected

Plugins

Genesis Blocks Awesome Logo Carousel Block Modal Builder Block Algolia Plugin

Contact Form 7

Mai Engine Mai Icons The Events Calendar

CSS Frameworks

UI Components

Icon Libraries

Analytics

Tag Managers

Marketing

CDN

Security

SEO Analysis

B72/100

Meta Tags5/15

Content8/12

Headings6/8

Technical24/25

E-E-A-T2/7

Images3/7

Links5/5

URL5/5

Social4/5

Freshness4/4

Mobile3/4

Indexability3/3

prebid.orgprebid.org

Home - Prebid

88,008 Instances Worldwide as of July 2024*

Title Length13 chars

Recommended: 50-60 chars (~81px / 580px)

Description Length43 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (122/127) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

12 URLs

12 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

19/100

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

D51/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

8/25

Citation

16/25

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

Text ratio:2%

Words:1,089

Token eff.:Optimal

Structured Data

5 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

sameAs entity links

Citation Readiness

Opening Summary42w

Descriptive Headingsavg 1.7w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

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.

87/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

17/20

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

15/15

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

ARIA & Roles

10/15

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.

81/100

A+

7 mg

CO₂e / view

69.5 KB

Page Weight

95%

Cleaner Than

New Visitor

8 mg

Returning (cached)

4 mg

Annual (10K/mo)

840 g

Emission Segments

Data Center

<0.001 g

Network

2 mg

Device

5 mg

Resource Breakdown

Images

30.6 KB

HTML

38.9 KB

Green Hosting Verified

Google Cloud

GWF Verified

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

36%Critical

Interactive

HTTPS

WAF

81d

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

01.05.2026

Valid Until

30.07.2026

Subject Alternative Names (1)

prebid.org

SHA-256 Fingerprint

84:60:59:9F:DA:4C:10:C1:EB:04:D5:80:93:37:AA:1B:D7:39:3F:10...

Top Recommendations

Security recommendation preview

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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

HIT

cf-ray

9f93f69c0cc08480-BOS

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

aspmx.l.google.com

alt2.aspmx.l.google.com

alt4.aspmx.l.google.com

alt3.aspmx.l.google.com

+1 more

Domain Information

prebid.org

Domain Age

10y 9m

Created

23.07.2015

Expires

23.07.2026

Last Updated

24.11.2025

Registrar

1API GmbH

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

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.

84/100

Mobile Friendly41 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

1 recommendation

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Inter

WCAG Partial

72/100

Readability

/30

23/30

19px · LH 1.60

Hierarchy

/20

19/20

3.05x ratio · ✓ H1→H6

WCAG

/25

10/25

1:1 min contrast

Performance

/25

20/25

1 font · 1 req

Heading Font

Inter

Sans58px

Body Font

Inter

Sans19px

Contrast Ratio

1:1

27 issues

Reading Comfort

~34 CPL

Narrow lines

58px

68px

30px

24px

19px

✅ Excellent readability: 19px body text is ideal for all devices.

⚠️ Hard to read: Flesch score 30/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 27 elements below WCAG AA threshold (min 1.0:1).

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

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

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

Buy on MyFontsFlesch 30

Color Palette

11 unique colors

21:1 AAA Light

#ffffff

Background· 45.7%

#000000

Text· 9.8%

#004484

Primary· 7.5%

#f0863e

Accent· 5.1%

#45889f

Secondary· 2.7%

#173450

Accent· 0.6%

#997154

Secondary· 0.5%

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

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Social Media

Pinterest WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

prebid.org(11)google.com(3)cdn.consentmanager.net(2)js.hsforms.net(2)delivery.consentmanager.net(1)

Website Identity

Prebid.org

Organization

prebid.org/

10 years old

Location detected: 🇺🇸 United Statesvia ip

1API GmbH📧 Google Workspaceen-US

Social Profiles

LinkedIn GitHub

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Last analyzed: 09 May 2026 at 21:59

Historical Analysis & Change Tracking