It's a basic question I got in my mind recently. It may sound silly as I have been in Bitcoin for a few years now LOL.

I had a TX accelerated through viabtc (example, not true; not my TX actually). The TX was created 10 days ago. Due to competition, I couldn't get a free slot in viabtc free accelerator. But recently, I was able to submit in their accelerator. Unfortunately, the TX wasn't included in the block viabtc mined. Well, I guess the transaction was dropped from the mempool as it says local on the Electrum wallet.

What do I need to do? I guess "rebroadcast" the TX. I believe I'm correct, ain't I?

Instead of rebroadcasting the TX from the Electrum wallet, is it the same if I do it through any website? For instance- https://blockchair.com/broadcast
If I put the TX ID there and broadcast, am I fine? Do I have to do anything else?