SEO META 1 COPY

This is an extension that allows you to easily check SEO-related meta information and copy it with one click.
You can quickly check META information, headings, and structured markup (JSON-LD, Microdata, RDFa).
You can also easily copy information in Markdown or tab format.

Sidebar display is now supported. It can be changed from Options.

++++++ Usage ++++++
Simply install the extension in your browser and access the page you are interested in. When the icon is clicked, the metadata that is often checked by SEOs will be displayed.


++++++ Features ++++++
#### Summary Tabs ####
* Basic Information
** Displays information in Head tags such as Title, Description, etc.
** Total number of DOM elements
** Number of Style tags and bytes
** If the CMS is WordPress, show it. If the CMS is WordPress, show it. If the theme is known, show it too.

* Page Speed
** Obtained from Navigation Timing API.

* All StyleSheets
** List of css files set in stylesheet tag.
* ALL LINKS
** List of files set in the link tag.
* ALL SCRIPTS
** List of JS files set in script tag
* ALL METAS
** List of names and contents set in meta tags
* Number of links in Hx tags and a tags
* External links List of links by rel setting


#### headings tab ####
* H1 – H6 tags in the order of their appearance in the HTML.
* Each hierarchy has a different color and is indented for easy viewing.
* Use the arrow buttons on the right to scroll to where they appear.
* At the bottom is a list of the number of H1 – H6 uses and links.


#### JSON-LD tab ####
* This is a function to check the Google recommended structured data JSON-LD.
* You can also check the details of the settings.
* It does not check if the JSON-LD specification is correct.
* A link button to the Google Docs for each type of structured data has been provided. Please refer to the links for detailed specifications.
* We have also placed a link to Google's Rich Results Test at the bottom; please use Google's tool to check if the JSON-LD description is correct.


#### Microdata tab ####
* This is a function to check Microdata for structured data.
* You can also check the details.
* Red text notifies you if the no longer supported "data-vocabulary.org" is being used.
* Links to documentation, rich-results testing, and schema markup validation tools are also provided at the bottom.


#### RDFa tab ####
* This function verifies RDFa for structured data.


#### Image Tab ####
* The number of img tags at the top is summarized in a table by condition.
** Number of cases where ALT attribute is not set.
** Number of cases where loading="eager" is set
** Number of cases where loading="lazy" is set
** Number of images that are displayed by replacing the src attribute in JavasScript
*** Judged by whether data-src is set or not
** Number of noscript tags with img tags
** Number of img tags with no width and height set
** Number of webp, avif in next generation image format
** Number of img tags without width and height ** Number of webp and avif images in next generation image formats
** Number of images that took more than a certain number of milliseconds.
*** The number of images that took more than a specific number of milliseconds is counted using the Resource Timing API.

* You can check this in the list of images that match each condition.
** Thumbnail images.
*** If data-src exists, the image in data-src will be displayed.
** File name
** Value of ALT attribute
** Image type (determined by content-type, not extension)
** file size of the image
** size of the image
** time it took to display
** value of data-src, if present
** lazy processing



[ update history ]

### ver 6.4.0

* Added the ability to open in the sidebar from a shortcut key.

### ver 6.3.0

* Some of the required properties of JSON-LD are now checked.

### ver 6.2.0

* Added a setting item to the context menu when clicking on the extension's icon.


### ver 6.1.0

* Changed design of options screen
* Fixed a bug in the initial display tab settings in the sidebar.


### ver 6.0.0

* Manifest V3 is supported.


### ver 5.1.0

* We have made it stand out when you press the headline move button.


### ver 5.0.3

* Sidebar support.


### ver 4.3.1

* Cases in which JSON-LD could not be read properly are now addressed.


### ver 4.3.0

* The default tab to be displayed first can now be set.

### ver 4.2.3

* Prepare for manifest V3 support


### ver 4.2.2

* Minor corrections

### ver 4.2.1

* Translation file update

### ver 4.2.0

* Google Search Console was added to Tools.

### ver 4.1.0

* TOOL tab added.


### ver 4.0.0

* JSON-LD/Microdata/RDFa are now combined in the Structured tab.
* Social tab has been added.


### ver 3.9.0

* The analysis results obtained once are now cached and reused.
* Option page added.

### ver 3.8.1

* Minor corrections

### ver 3.8.0

* Added the ability to check image rights information (EXIF, XMP, IPTC).


### ver 3.7.3

* bug fixed.

### ver 3.7.1

* Minor corrections


### ver 3.7.0

* Added field data for Core Web Vitals.

### ver 3.6.0

* Prepare for manifest V3 support
* Introduced a progress bar on the screen during analysis.


### ver 3.5.2

* Fixed some pages that could not be displayed due to errors.
* Changed the counting of slow images so that images for which "responseStart" cannot be obtained are not counted.
* Changed to sort the list of images that took more than 20 milliseconds in order of slowest to fastest.

### ver 3.5.1

* Fix the look.


### ver 3.5.0

* The time taken for each phase of the image resource can now be checked in a list.
* Image speed is referred to the "Resource Timing API", so it may not be available for all images.
* The determination of slow images has been changed to the time taken for request and response.


### ver 3.4.0

* Added the number of images that take more than 200 milliseconds to load and a list of those images to the Images tab.
* Image speed is referred to the "Resource Timing API", so it may not be possible to get it for all images.

### ver 3.3.1

* tooltip bug fix.

### ver 3.3.0

* The count of images with no size specification and the number of next generation format images are now shown in the table.
* Added the image format, file size, and image size to the images in the Images tab (some images cannot be retrieved due to API reasons).
* Added a list of images whose size is not specified.

### ver 3.2.0

* The total number of DOM elements has been added to the Summary tab.

### ver 3.1.0

* I changed the background of the image tooltip to a checkerboard pattern.

### ver 3.0.3

* Added page speed description and specification document.

### ver 3.0.2

* imag tab coloring.

### ver 3.0.1

* bug fixed.

### ver 3.0.0

* Added the Image tab.
* You can also check the number of images and the number of images that are set to be lazily loaded.



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