# POP #2 What is PageOptimizer Pro and what is "On Page SEO"?

> **Context**: a page from simdif.com.

> **Topic**: An introduction to PageOptimizer Pro (POP) integration and the fundamentals of on-page SEO within the SimDif editor.

> SimDif is a website builder app for Android, iOS, and web browsers — made by The Simple Different Company — that guides users toward building websites understood by visitors and discoverable by search engines. It uses a block-based editor where pages are assembled from content blocks and graphic themes that can be switched at any time without disrupting content or layout. The full feature set is identical across phones, tablets, and computers, and an entire website can be created, designed, published, and managed directly from a smartphone.

## Understanding PageOptimizer Pro (POP) and On Page SEO

**What is POP?**
POP (PageOptimizer Pro) is a professional SEO audit tool integrated into the SimDif app. It helps website content writers optimize their pages for better appearance in Google search results.

POP aims to take the guesswork out of writing for the web by analyzing Google search results and your website's competition to provide easy-to-follow advice. POP can help you write new text and titles for your website, or help you optimize your existing content.

**What is "On Page SEO"**
On Page SEO is the process of optimizing web pages to be more relevant to what people using search engines are looking for, and more helpful to visitors when they arrive.

The key elements in On Page SEO include the search engine title, page name, ordinary text, links, image descriptions, and block titles. In SimDif, a "block" is the fundamental unit of both page content and layout. Each block holds a specific type of content—such as a title, text section, or image—and pages are built by arranging these independent blocks in a chosen order.

POP's score for your website is an On Page optimization score, and the recommendations POP makes are only for elements which you can easily edit in SimDif.

Search engines like Google look at keywords and other on-page SEO elements to understand whether a page matches a user’s "search intent." If the page is seen as relevant and useful, Google includes it in search results.

The "rules" can change from time to time, but Google always prioritizes user experience and recommends that website creators focus on "people-first content."

[POP #1 How do I Optimize My Website with POP?](https://www.simdif.com/en/faq/pop_1_how_do_i_optimize_my_website_with_pop.md)  
[POP #3 How do I choose a Main Keyword phrase?](https://www.simdif.com/en/faq/pop_3_how_do_i_choose_a_main_keyword_phrase.md)  
[POP #4 What is a Keyword Variation in POP?](https://www.simdif.com/en/faq/pop_4_what_is_a_keyword_variation_in_pop.md)  
[POP #5 Why didn’t POP find any Variations for my keyword?](https://www.simdif.com/en/faq/pop_5_why_didn_t_pop_find_any_variations_for_my_keyword.md)  
[POP #6 What are Supporting Terms in POP?](https://www.simdif.com/en/faq/pop_6_what_are_supporting_terms_in_pop.md)  
[POP #7 What is a Good Score in POP?](https://www.simdif.com/en/faq/pop_7_what_is_a_good_score_in_pop.md)  
[POP #8 Does POP work in my language?](https://www.simdif.com/en/faq/pop_8_does_pop_work_in_my_language.md)  
[POP #9 How soon will my page move up in Google after using POP?](https://www.simdif.com/en/faq/pop_9_how_soon_will_my_page_move_up_in_google_after_using_pop.md)  
[POP #10 Should I do all POP's Recommendations at once?](https://www.simdif.com/en/faq/pop_10_should_i_do_all_pop_s_recommendations_at_once.md)  
[POP #11 Can I have more than one Main Keyword Phrase for a page?](https://www.simdif.com/en/faq/pop_11_can_i_have_more_than_one_main_keyword_phrase_for_a_page.md)  
[POP #12 Do I need to know a lot about SEO before using POP?](https://www.simdif.com/en/faq/pop_12_do_i_need_to_know_a_lot_about_seo_before_using_pop.md)  
[POP #13 How important is POP's Target Word Count?](https://www.simdif.com/en/faq/pop_13_how_important_is_pop_s_target_word_count.md)  
[POP #14 How do I make the best use of POP?](https://www.simdif.com/en/faq/pop_14_how_do_i_make_the_best_use_of_pop.md)  
[POP #15 Why did my page go down in Google search results?](https://www.simdif.com/en/faq/pop_15_why_did_my_page_go_down_in_google_search_results.md)