My Managed WordPress sites are getting 503 Service Unavailable Error?

[DigitalKrish]

I have two managed WordPress websites (http://writetogeather.com, http://giftsinonline.com) on GoDaddy. 

Suddenly all two websites getting down and error showing

- "Service Unavailable

HTTP Error 503. The service is unavailable"

Unable to contact support. I haven't don't any changes also last 7 days
Please advise.

[reverselogic · Accepted solution]

I just tried both of your sites. They come up without a 503 error. You should consider adding SSL.

[DigitalKrish]

Yes, they are opening now. And Yes, I'll consider an SSL certificate for
this.

Thanks.