A container for ad group criterion quality information.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v26/resources/ad_group_criterion.proto)

| Fields ||
|---|---|
| ## `creative_quality_score` | `https://developers.google.com/google-ads/api/reference/rpc/v26/QualityScoreBucketEnum.QualityScoreBucket` Output only. The performance of the ad compared to other advertisers. |
| ## `post_click_quality_score` | `https://developers.google.com/google-ads/api/reference/rpc/v26/QualityScoreBucketEnum.QualityScoreBucket` Output only. The quality score of the landing page. |
| ## `quality_score` | `int32` Output only. The quality score. This field may not be populated if Google does not have enough information to determine a value. |
| ## `search_predicted_ctr` | `https://developers.google.com/google-ads/api/reference/rpc/v26/QualityScoreBucketEnum.QualityScoreBucket` Output only. The clickthrough rate (CTR) compared to that of other advertisers. |