Once you've got a few levels and Diablo 4 Items better gear, transition into Nightmare Dungeons and Kurast Undercity for serious XP gains.

Nightmare Dungeons require sigils, which you can farm or craft. Look for dungeons with XP-boosting affixes.
Dismantle unwanted sigils at the Occultist to craft better ones.
Kurast Undercity, unlocked via Tributes, offers another burst of XP. Prioritize Tributes that offer XP bonuses.

When available, these two content types should take precedence over Helltides for XP efficiency.

Clear Strongholds at Level 40+

At around level 40, Strongholds become an excellent source of fast XP:

Packed with elite mobs and mini-bosses.
Huge XP bursts upon completion.
Some unlock additional fast-travel or content.

Strongholds are ideal to clear once your character is stronger and capable of handling more complex enemy packs. Try to knock out as many as possible before level 50 for a smoother progression into World Tier 3 content.

Final Tips for Speed Leveling

To buy Diablo 4 Items and always use Elixirs for that free XP boost and combat bonus.
Party up for faster mob clears and shared XP gains.
Avoid getting bogged down in unnecessary side quests.
Stay mobile: if a dungeon is taking too long, bail and find something more efficient.
Keep your gear updated with vendor and drop upgrades- don't wait for legendaries.

Conclusion

Leveling in Diablo 4 doesn't have to be a grind. With the right build, focused content choices, and a solid strategy, you can breeze through the early and mid-game levels in just a few hours. Whether you're aiming to dive into Nightmare Dungeons, chase leaderboards, or explore seasonal content, following this guide will help you get there faster- and with buy Diablo IV gold a lot more loot along the way.