Page Optimizer Pro - Page Optimizer Pro is an on-page SEO tool, allows marketers to produce flawlessly optimized pages for Google with ease.
Algolia - Algolia's Search API makes it easy to deliver a great search experience in your apps & websites. Algolia Search provides hosted full-text, numerical, faceted and geolocalized search.
Schema App - Schema App empowers the Digital Marketer to own their schema markup strategy through to implementation without ever writing code.
Google Custom Search - Google Custom Search enables you to create a search engine for your website, your blog, or a collection of websites.
UpSeo - UpSeo is a best-in-class website traffic generator, allowing you to get more potential visitors to your website and enhance conversions.
ElasticSearch - Elasticsearch is an open source, distributed, RESTful search engine.