is_page() checks if page is being displayed, it has nothing to do with checking if page exists at all in installation.
You likely want get_page_by_path() or get_page_by_title() instead.
Related Posts:
- Is it possible to manipulate the list of page templates?
- Do I really need the div class entry?
- Where can I access my custom page template?
- Highest number of WordPress Custom Page Templates?
- How to create a custom page(not a template) in a theme
- how to setup custom content structures
- Need help with adding templates (archives and sitemap) to WordPress child theme
- Issue On Displaying Pages with Post Name Permalink
- Why in the static pages of my theme are showing these information?
- Injecting pre-defined text from custom page template to editor
- Custom theme template files
- How to show metabox on page if it is using a template
- Problem with Displaying Custom Theme Page’s Content
- Can you create a custom page with content in the center already defined?
- A way to automatically install pages on theme install?
- Create “File-less” Page Template in Functions.php
- Pages: frontpage.php, home.php, posts page etc
- Adding items to page template dropdown on Page Edit Screen
- Posts in multiple Categories different single.php
- Hide certain pages / posts on wp-admin, show custom filter
- Adding Content Areas to Custom Page Template
- wp_insert_post breaks rewrite rules
- Trouble with conditional tags
- Pagination & get_pages?
- Returning Variables back into a template
- Page attribute template dropdown not displayed even the syntax is correct
- How to highlight the current page in the nav menu?
- Page template across themes
- Displaying part of every child page?
- How do I get the next page of posts link?
- WordPress page templates in a directory
- Disable front-page.php template
- Can I show all the template files that are being used on my site?
- Implement content-nosidebar.php / content-leftsidebar.php
- get_page_template returning nothing
- Multiple Page Templates & CSS
- Single Page theme [closed]
- Custom metabox for custom page template
- Why is the Page Template dropdown menu using the wrong file name?
- How to add “Template” option in page attributes panel?
- Multiple TinyMCE Editors in one Admin Page
- Create a new page in WordPress theme
- Populate editor with some content of a page with a page template
- Template selection area is not visible on page editor sidebar in wordpress twentty sixteen default theme
- Move default page templates to sub directory
- How to Find the Page the Front Page is Using?
- How to place HTML tags in content from the_content()?
- How can I conditionally show different home page templates based on whether or not the user is logged in?
- Load sidebar template just once to prevent multiple animations
- How to create first post, fifth post full width, rest in three columns and so on
- Remove specific published page when theme deactivated
- Migrating to WordPress – but how will it do “structured” data?
- How to code custom special page
- Modify available templates (in dropdown)
- What is the best way to build home pages with a lot of sections for distributable themes [closed]
- How to add custom meta box when you have a custom page template file
- How to track a users last visited page?
- Templates dropdown not appearing using _s theme (underscores)
- WordPress Load Only Page Text
- How does the loop know which post to view?
- Pagination fuction in shortcode always displays on top
- Theme development: menu links a tabbed page with page jumps
- How to use shortcode inside of shortcode in theme
- Trouble in creating a custom template on twentyeleven theme
- Parent/Child pages
- Custom search template is showing 404 when adding query string
- ACF get_sub_field ALT TAG in the repeater doesn’t show
- WordPress Animation Adjustments
- Show only pages you are author of
- How do I open a post in a custom page in wordpress?
- A Reviews Page is Showing root Index.php instead of Template-Page
- No templates for condition page.php Elementor
- Show Yoast SEO meta tags in Custom WordPress Templates (Theme)
- Pages not displaying as sections on static page
- makeing a terms of use page that is part of the theme
- Template for front page (latest posts)
- Creating a theme just to deploy a single page
- Group several custom global page templates in sub-folder
- WordPress Twenty-Fourteen: How to Remove Home Page Header Image from Other Pages
- Alter theme pages on language switch
- wp_editor some functionality not working on custom theme
- How to show children pages as array
- Different stylesheet for different pages not working fully
- One-Page WordPress Template
- Create a custom theme-specific page, invisible in the admin-panel?
- Create a variable with string, array or multiple values
- How to create multiple pages in a client theme?
- How can I display and excerpt of all pages with a meta_key and meta_value on index.php?
- Why WordPress gets old templates code instead of the last updated ones
- Advantages/Disadvantages Using Theme Editor Instead of Pages
- how to make a new page affected by a theme’s index.php layout?
- How get the 10 most viewed pages (not post)
- How can I change the title of the Home link in the navigation bar?
- Standard Way To Do Custom Work Within A Page?
- Loop inside page template not working
- How do I get information about a page, such as featured image, except, and title?
- How to split the site’s layout without damaging this layout? [closed]
- Is there a way to have WordPress autodetect page templates in the page-templates directory and any sub-folders?
- What is the point of using the front-page.php template? [closed]
- How to automatically set a Template Page Name next to a page in menu screen such as WooCommerce pages, front page, or posts page in wordpress?