URL Inspection: https://grandmasters.io

Open Cached · just now

HTTP Status

200

Ping

15 ms

Technologies

SSL/TLS Certificate

View Full SSL Report

Issued By

C=US, O=Google Trust Services, CN=WR3

Security Score

80 /100

Network & Hosting

View DNS Records

199.36.158.100 • AS54113 • Fastly

Technologies Detected

Fastly

CDN

Evidence

• IP 199.36.158.100 → ASN 54113

Google Trust Services

Certificate Authority

Evidence

• Google SSL certificate

Google Analytics

Analytics

Evidence

• Google Analytics script in HTML

Metadata & SEO

Title

Grandmasters.io — Play online chess & minichess

Description

Play Grandmasters.io — fast browser-based chess and minichess with live matchmaking, leaderboards, and instant multiplayer.

Canonical URL

https://grandmasters.io/

Viewport

width=device-width, initial-scale=1.0, maximum-scale=5.0, user-scalable=yes, viewport-fit=cover

Social Media Cards

OpenGraph

Type

website

Description

Play Grandmasters.io — fast browser-based chess and minichess with live matchmaking, leaderboards, and instant multiplayer.

Title

Grandmasters.io — Play fast online chess & minichess

Image

/icons/og-image.png

Url

https://grandmasters.io/

Image:width

1200

Image:height

630

Image:alt

Grandmasters.io chess game preview

Twitter Cards

Description

Play Grandmasters.io — fast browser-based chess and minichess with live matchmaking, leaderboards, and instant multiplayer.

Title

Grandmasters.io — Play fast online chess & minichess

Image

/icons/og-image.png

Card

summary_large_image

Image:alt

Grandmasters.io chess game preview

Dependencies

📜 Scripts (3)

• https://www.googletagmanager.com/gtag/js?id=G-L7WXKN3PWM
• https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-2409232068379346
• https://grandmasters.io/flutter_bootstrap.js

🖼️ Images (1)

• https://grandmasters.io/icons/Icon-192.png

Resource Hints

preconnect

https://www.googletagmanager.com

Crossorigin: crossorigin

preconnect

https://www.google-analytics.com

Crossorigin: crossorigin

preconnect

https://firestore.googleapis.com

Crossorigin: crossorigin

preconnect

https://www.googleapis.com

Crossorigin: crossorigin

preconnect

https://securetoken.googleapis.com

Crossorigin: crossorigin

preconnect

https://identitytoolkit.googleapis.com

Crossorigin: crossorigin

preconnect

https://firebaseinstallations.googleapis.com

Crossorigin: crossorigin

dns-prefetch

https://www.googletagmanager.com

dns-prefetch

https://www.google-analytics.com

dns-prefetch

https://firestore.googleapis.com

dns-prefetch

https://www.googleapis.com

dns-prefetch

https://securetoken.googleapis.com

dns-prefetch

https://identitytoolkit.googleapis.com

dns-prefetch

https://firebaseinstallations.googleapis.com

preload

https://grandmasters.io/icons/og-image.webp

Type: image

preload

https://grandmasters.io/icons/og-image.png

Type: image

preload

https://grandmasters.io/icons/Icon-192.webp

Type: image

preload

https://grandmasters.io/icons/Icon-192.png

Type: image

preload

https://grandmasters.io/assets/assets/images/app_logo.png

Type: image

Inspected on November 12, 2025 at 05:44 UTC