Ubuntu Server - website not shown good when share in Whatsapp, FB etc

tabanan · Thursday at 2:50 AM

Hi, there

I have dedicated server with installed lastest ubuntu server and then set up website using wordpress. when i share my website in whatsapp, fb etc. it not shown just show the url (title, description, thumbnail not shown).

What should i do, it need to activate some module in php, apache that i forgot?

please advice, i'm so confused about this.

thank you

Harry P · 2025-03-17T16:13:15+0000

Hey, I understand, this issue is usually related to missing Open Graph tags or sometimes a server-side setting blocking the social media crawlers.

Here’s what you should check first:

1. Verify your WordPress setup:

Install and activate an SEO plugin like Yoast SEO or Rank Math.
These plugins automatically generate Open Graph tags (title, description, and thumbnail) for social media previews.

If you already have these set, move to step two:

Check your Apache/PHP Configuration:

Make sure your server is allowing crawlers (Facebook, Twitter, etc.):

Check your .htaccess file or Apache configuration to ensure crawlers aren't blocked.
Also, verify if mod_rewrite is enabled:

Code:

sudo a2enmod rewrite
sudo systemctl restart apache2

Check PHP Modules:

Typically, these modules need to be enabled:

gd (for image handling)
curl
mbstring
allow_url_fopen in php.ini

You can enable them like this on Ubuntu:

Code:

sudo apt install php-gd php-curl php-mbstring
sudo systemctl restart apache2

Important Tip:
Use Facebook Debugger (developers.facebook.com/tools/debug/) or Twitter Card Validator (cards-dev.twitter.com/validator) to check exactly why thumbnails or metadata aren’t showing.

Hope it helps!

Ubuntu Server - website not shown good when share in Whatsapp, FB etc

tabanan

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Harry P

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