Verify graded card certificate information for cards graded by PSA, CGC, SGC, and more

Latest Version

Version
1.02
Update
November 6, 2021
Size
242KiB
Developer
mnmapplications.com
Category
Users
36
Rating
0 ★
Manifest Version
2
Web Store Status
Languages Support
English
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Permissions
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CertCheck Extension

CertCheck - A quick lookup utility for graded card certificate information - PSA, CGC, and PGS slabs are currently supported.

Before purchasing your next graded card on sites like eBay, PWCC, or Heritage Auctions, you'll likely want to pull up the official certificate details. For PSA slabs, you can find direct links to the population reports for that card and it will sometimes include previous public sale history of the card. This also helps you validate all the details about the card you're about to spend hard-earned money on.

CertCheck makes it easy to look up the certificate details for cards in your collection or cards you're thinking about purchasing, and it works across different grading companies too in case you trade in multiple kinds of slabs.


★ How to Use:

Enter the certificate number of the graded card that you'd like to search, then select the radio button corresponding to the slab's grading company. Click the search button to initiate, and the extension should open the webpage for the certificate details.


★ Grading Companies Supported:

CertCheck supports cards that are graded and authenticated by the following grading companies.

- CGC - Certified Guaranty Company
- PSA - Professional Sports Authenticator
- PGS - Platin Grading Services


★ Types of Cards Supported:

CertCheck works for all different types of cards. As long as a slab is graded by a supported company, it's details can be searched by CertCheck. This works across a variety of collectible card games / trading card games such as the following:

- Pokemon cards
- Yugioh cards
- Magic the Gathering cards
- Football cards
- Baseball cards
- Hockey cards
- And more!


★ Disclaimers:

CertCheck is not affiliated with any of the aforementioned grading companies.

If you experience any problems with the app, please contact the support email address listed below.


★ Support:
Email: [email protected]
Developer Website: www.MNMApplications.com
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "name": "CertCheck for Chrome", "version": "1.02", "description": "Verify graded card certificate information for cards graded by PSA, CGC, SGC, and more", "manifest_version": 2, "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'", "icons": { "16": "assets/images/icon-16.png", "48": "assets/images/icon-48.png", "128": "assets/images/icon-128.png" }, "background": { "scripts": [ ] }, "browser_action": { "default_icon": { "19": "assets/images/icon-19.png", "38": "assets/images/icon-38.png" }, "default_popup": "index.html" }, "permissions": [ ]}
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How to download and manually install CertCheck extension for Chrome

Looking for a way to install CertCheck extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install CertCheck extensions manually, this article outlines two simple methods to effortlessly install CertCheck extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download CertCheck extension and manually install through Drag &Drop

If you ever need to manually install a CertCheck extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the CertCheck Extension by clicking the "Download CRX" button on the website.

Look for the CertCheck extension you wish to install. Go to the website and download the CertCheck extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for CertCheck extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the CertCheck extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download CertCheck extension for Chrome and install in Developer Mode

This is another method to install CertCheck extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the CertCheck extension file

Select and download the CertCheck extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the CertCheck extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your CertCheck extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the CertCheck extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install CertCheck extension in 2 ways. We hope this guide proves helpful.

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