Haar profiel ziet er netjes uit, omdat zij gisteren haar foto en informatie heeft bijgewerkt.

Here haar means her.

Dutch haar can mean:

• her as a possessive word: haar profiel = her profile
• hair as a noun: haar = hair

In this sentence, it is clearly the possessive word because it comes before a noun, profiel.

So:

• haar profiel = her profile
• haar by itself could also mean hair, but not here.

Dutch often uses the fixed expression er ... uitzien to mean to look / to appear.

So:

• er ... uitzien = to look, to appear

Examples:

• Hij ziet er moe uit. = He looks tired.
• Het huis ziet er mooi uit. = The house looks beautiful.

In your sentence:

• Haar profiel ziet er netjes uit. = Her profile looks neat / tidy.

You usually cannot drop er and uit here. They belong to the expression.

In er ... uitzien, the word er is part of the idiomatic structure. It does not translate neatly by itself in English.

Think of er ... uitzien as one unit:

• er ... goed uitzien = to look good
• er ... vreemd uitzien = to look strange
• er ... netjes uitzien = to look neat

So in this sentence, er is not giving an extra separate meaning like there. It is simply required by the Dutch expression.

Because uitzien is a separable verb.

The full verb is:

• uitzien

In a main clause, separable verbs split:

• the conjugated part goes earlier in the sentence
• the prefix goes to the end

So:

• ziet ... uit

Compare:

• Het ziet er goed uit.
• Zij ziet er moe uit.

This is very common in Dutch:

• opbellen → Ik bel je op.
• meebrengen → Hij brengt koffie mee.
• uitzien → Het ziet er netjes uit.

Because omdat introduces a subordinate clause, and subordinate clauses in Dutch usually send the verbs to the end.

Main clause:

• Haar profiel ziet er netjes uit

Subordinate clause after omdat:

• omdat zij gisteren haar foto en informatie heeft bijgewerkt

In a clause with omdat, the normal order is roughly:

• omdat
  • subject + other information + verbs at the end

So:

• omdat = because
• zij = subject
• gisteren = time
• haar foto en informatie = object
• heeft bijgewerkt = verb cluster at the end

That verb-final pattern is one of the most important features of Dutch subordinate clauses.

Both orders can occur in Dutch, depending on style, region, and grammar preferences, but heeft bijgewerkt is very common and natural in modern standard Dutch.

The verb here is the perfect tense of bijwerken:

• heeft bijgewerkt = has updated

In subordinate clauses, Dutch verb clusters can sometimes vary in order, especially with participles and auxiliaries. But for a learner, heeft bijgewerkt is a perfectly standard model to follow.

So this sentence is completely normal:

• omdat zij gisteren haar foto en informatie heeft bijgewerkt

Bijgewerkt is the past participle of the separable verb bijwerken, which means to update.

Parts:

• bijwerken = to update
• heeft bijgewerkt = has updated

Why one word?
In the past participle, separable verbs usually join back together:

• infinitive: bijwerken
• main clause: Zij werkt haar profiel bij.
• perfect tense: Zij heeft haar profiel bijgewerkt.

So:

• split in some finite forms: werkt ... bij
• joined in infinitive and participle: bijwerken, bijgewerkt

Both zij and ze can mean she.

• ze is more common in everyday speech
• zij is more formal, more emphatic, or sometimes used for clarity

In writing, zij may sound slightly more careful or formal.

So these are both possible:

• omdat zij gisteren ...
• omdat ze gisteren ...

The sentence uses zij, but ze would also be very natural in many contexts.

Netjes usually means something like:

• neat
• tidy
• well-organized
• presentable

In this sentence, it suggests that the profile looks orderly and properly maintained.

So netjes does not only mean physically tidy. It can also describe something that is:

• cleanly presented
• well put together
• proper in appearance

For a profile, netjes means it looks well maintained and respectable.

Yes, gisteren can move, but its position here is very normal.

The clause is:

• omdat zij gisteren haar foto en informatie heeft bijgewerkt

Here gisteren comes after the subject zij, which is a very common place for time expressions.

You could also see other arrangements depending on emphasis, for example:

• omdat zij haar foto en informatie gisteren heeft bijgewerkt

Both are possible, but the original version sounds very natural and neutral.

Because both nouns belong to the same possessive word, haar.

So:

• haar foto en informatie = her photo and information

Dutch often uses one possessive word for two coordinated nouns when both belong to the same person or thing.

Compare:

• mijn jas en tas = my coat and bag
• zijn naam en adres = his name and address

You could repeat haar, but it is usually unnecessary:

• haar foto en haar informatie

That version is possible, but the original is more natural unless you want extra emphasis.

In Dutch, informatie is generally an uncountable noun, just like information in standard English.

So:

• informatie = information

You normally do not say informaties in ordinary usage.

That is why the sentence says:

• haar foto en informatie

One photo is a countable item, but informatie is treated as a mass noun.

Yes, but the meaning changes slightly.

• Haar profiel ziet er netjes uit = Her profile looks neat.
• Haar profiel is netjes = Her profile is neat.

Ziet er ... uit focuses on appearance: how it seems or looks. Is netjes is more direct and states the quality more firmly.

For a profile page, ziet er netjes uit often sounds a bit more natural because you are talking about how it appears visually.