A full backup copies your entire website every time, while an incremental backup copies only what has changed since the last backup. The trade-off is between completeness and efficiency: full backups are simple and self-contained but larger and slower to make; incremental backups are fast and space-efficient but rely on a chain of backups to restore fully. In practice, good backup systems combine them — periodic full backups plus frequent incremental ones — to get reliable protection without huge storage use. For most site owners this happens automatically, so the main thing is to understand what you are getting.
This guide explains what full and incremental backups are, their pros and cons, how they are usually combined, and what matters for a typical site owner.
Did you know?
Incremental backups make frequent backups practical: copying only what changed since yesterday is fast and small, which is how systems can back up busy sites often without ballooning storage.
What a full backup is
A full backup is a complete copy of your entire website — all files and the whole database — taken at that moment. Every full backup is self-contained: it holds everything needed to restore your site to that point, independent of any other backup.
This makes full backups simple and reliable to restore from, since one full backup is all you need. The downside is size and time: because it copies everything each time, a full backup is large and slower to create, and storing many full backups uses a lot of space. That cost is why they are usually not taken extremely frequently on their own.
What an incremental backup is
An incremental backup copies only the data that has changed since the previous backup. After an initial full backup, each incremental backup captures just the new or modified files and database changes, which makes each one small and fast to create.
This efficiency is the great advantage: incremental backups let you back up frequently without using much storage or time, since you are only ever saving the changes. The trade-off is that restoring relies on a chain — the last full backup plus all the incremental backups since — so a full restore needs the whole sequence intact, which is more complex than restoring a single full backup.
The trade-offs compared
Here is how the two backup types compare.
Neither is simply ‘better’ — they trade completeness and simplicity against speed and efficiency, which is why systems combine them.
How they are usually combined
In practice, good backup systems use both together to get the best of each. A common approach is to take a full backup periodically (say weekly) as a complete, self-contained baseline, then take incremental backups frequently (say daily) in between, capturing just the changes.
This combination gives you frequent, efficient protection (via the incrementals) anchored to reliable complete snapshots (via the fulls), without the huge storage cost of taking a full backup every time. It is the standard, sensible way to back up, balancing thoroughness against efficiency, and most backup tools and hosts implement some version of it.
Why the restore chain matters
The one thing to understand about incremental backups is the restore chain. Because each incremental backup only holds changes, restoring your site fully requires the last full backup plus every incremental backup taken since, applied in order. If any link in that chain is missing or corrupted, the restore can be incomplete.
This is why the periodic full backups matter — they reset the chain and provide a solid, self-contained recovery point. A good backup system manages this chain for you, so you do not have to think about it, but it is why full backups remain essential even in an incremental-heavy strategy: they are the reliable anchors the incrementals build on.
What matters for a typical site owner
For most site owners, the good news is that you rarely need to manage full versus incremental backups yourself — your host’s backup system or a backup plugin handles the strategy automatically, typically combining periodic fulls with frequent incrementals. You just benefit from the result.
So the practical takeaways are simple: make sure you have automatic backups running at a sensible frequency, that they are stored safely (ideally off-site), and that you can restore them when needed. Understanding full versus incremental helps you read backup options and know what is happening behind the scenes, but the system does the balancing for you. Focus on having reliable, restorable, well-stored backups, and the full-versus-incremental details take care of themselves.
Want backups handled for you?
Hostinger includes automatic backups on its plans — daily or weekly depending on the plan — stored off-server with easy one-click restore, so your site is always recoverable. From a few dollars a month; use code PROTIPS for the reader discount.
FAQs
What is the difference between full and incremental backups?
A full backup copies your entire website every time, while an incremental backup copies only what has changed since the last backup. Full backups are simple and self-contained but larger and slower; incremental backups are fast and space-efficient but need a chain of backups to restore fully.
What is a full backup?
A full backup is a complete, self-contained copy of your entire website — all files and the whole database — at that moment. It holds everything needed to restore to that point, so restoring is simple, but it is large and slow to create and uses a lot of storage if taken frequently.
What is an incremental backup?
An incremental backup copies only the data changed since the previous backup. After an initial full backup, each one captures just the new or modified files and changes, making it small and fast. This lets you back up frequently without much storage, but a full restore needs the whole chain of backups.
Which is better, full or incremental?
Neither is simply better — they trade completeness and simplicity against speed and efficiency. That is why good backup systems combine them: periodic full backups as reliable baselines, plus frequent incremental backups for efficient regular protection. Together they balance thoroughness and storage use.
How are full and incremental backups combined?
A common approach takes a full backup periodically (say weekly) as a complete baseline, then frequent incremental backups (say daily) in between capturing only changes. This gives frequent, efficient protection anchored to reliable complete snapshots, without the storage cost of full backups every time.
Do I need to manage full vs incremental backups?
Usually not. Your host’s backup system or a backup plugin handles the strategy automatically, typically combining periodic fulls with frequent incrementals. Just ensure you have automatic backups at a sensible frequency, stored safely (ideally off-site), and that you can restore them when needed.
The bottom line
A full backup copies your whole website every time — simple and self-contained but large and slow — while an incremental backup copies only what changed since the last one, making it fast and space-efficient but reliant on a chain of backups to restore fully. Neither is simply better; they trade completeness against efficiency.
That is why good backup systems combine them: periodic full backups as reliable baselines plus frequent incremental backups in between, giving efficient regular protection anchored to complete snapshots. For most site owners this happens automatically, so the real priorities are simply to have automatic backups at a sensible frequency, stored safely off-site, that you can actually restore — the full-versus-incremental balancing takes care of itself.
When you are ready, you can start with Hostinger and use code PROTIPS for the reader discount. Full backups copy everything; incremental ones copy only changes — good systems combine both automatically.