Expires directive in Nginx - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the Expires header to 1 day.

Nginx

expires [1];

Drag options to blanks, or click blank then click option'

Aoff

B10m

Cmax

D1d

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'off' disables the Expires header.

Using 'max' sets a very long expiration, not 1 day.

Using '10m' sets 10 minutes, not 1 day.

The expires directive with 1d sets the Expires header to 1 day in the future.

2fill in blank

medium

Complete the code to disable the Expires header.

Nginx

expires [1];

Drag options to blanks, or click blank then click option'

Aoff

B1h

C30s

Dmax

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'max' enables very long caching.

Using time values like '1h' or '30s' sets caching durations instead of disabling.

Setting expires off; disables the Expires header, so no caching is done.

3fill in blank

hard

Fix the error in the code to set Expires header to 10 minutes.

Nginx

expires [1];

Drag options to blanks, or click blank then click option'

A10minutes

B10m

C10min

D600s

Attempts:

3 left

💡 Hint

Common Mistakes

Using '10min' or '10minutes' causes syntax errors.

Using seconds like '600s' is valid but less common; '10m' is preferred.

The preferred syntax for 10 minutes is 10m. Forms like 10minutes and 10min are invalid in nginx; 600s is valid but 10m is more common.

4fill in blank

hard

Fill both blanks to set Expires header to 2 hours and disable it for a specific location.

Nginx

location /images/ {
    expires [1];
}
location /nocache/ {
    expires [2];
}

Drag options to blanks, or click blank then click option'

A2h

Boff

C1d

Dmax

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'max' instead of 'off' disables caching incorrectly.

Using '1d' instead of '2h' changes the caching duration.

Setting expires 2h; caches for 2 hours. Setting expires off; disables caching.

5fill in blank

hard

Fill all three blanks to set Expires header with a variable, a time, and disable caching conditionally.

Nginx

set $cache_time [1];
if ($request_uri ~* ".*\.css$") {
    expires [2];
} else {
    expires [3];
}

Drag options to blanks, or click blank then click option'

A1d

Boff

C$cache_time

D10m

Attempts:

3 left

💡 Hint

Common Mistakes

Using a variable name without setting it first.

Using 'off' for all files disables caching everywhere.

Using a time string directly instead of the variable in the else block.

We set $cache_time to '1d'. CSS files have caching disabled with 'off'. Others use the variable $cache_time.