Best Serp

Surfer Content Editor is a collaborative writing tool built by Semrush that analyzes top-ranking content to suggest keywords and optimize on-page SEO factors for improved search visibility.

DataForSEO's Keywords Data API offers comprehensive keyword data—including search volume, cost, competition, and trends—to address limitations found in Semrush’s data coverage and historical accuracy for specific regions and languages.

Moz Keyword Explorer provides data on keyword difficulty, organic click-through rates, and search volume to inform SEO strategies, historically addressing a gap in comprehensive competitor analysis previously found lacking in some other tools.

SISTRIX Toolbox offers specialized SEO analysis features—like backlink gap and keyword research—aimed at addressing limitations found within Semrush's functionality for in-depth competitive investigation.

AlsoAsked is a Semrush tool that analyzes question-based search queries related to a given topic, revealing common user concerns and potential content opportunities surfacing directly from Google's "People Also Ask" boxes.