The content keyword has a number of modifier keywords. The modifier keywords change how the previously specified content works. These modifier keywords are:
| Modifier | Section |
| nocase | 3.5.2 |
| rawbytes | 3.5.3 |
| depth | 3.5.4 |
| offset | 3.5.5 |
| distance | 3.5.6 |
| within | 3.5.7 |
| http_client_body | 3.5.8 |
| http_cookie | 3.5.9 |
| http_raw_cookie | 3.5.10 |
| http_header | 3.5.11 |
| http_raw_header | 3.5.12 |
| http_method | 3.5.13 |
| http_uri | 3.5.14 |
| http_raw_uri | 3.5.15 |
| http_stat_code | 3.5.16 |
| http_stat_msg | 3.5.17 |
| fast_pattern | 3.5.19 |