Adding a Content Source on Tumblr
At the top of the post form, hit the gear icon. Put the original URL in the “Content source” field. Your post will always be credited as the source, no matter how many times it’s reblogged. Ensure the source points to the original location for content from elsewhere. Now your post is properly attributed.
Adding Links to Your Tumblr
Does Tumblr allow links?
On a computer: Choose your Tumblr blog. Tap "Edit appearance" on the right, then "edit theme" under "website theme." Put the link in the "description box" on the right.
How do I link to a specific post on Tumblr?
Navigate to the post by clicking the top right corner. Copy the URL from your browser’s address bar to link to the post on your Tumblr, a forum, email, or any website.
How to Attribute Sources Credibly
How do you add a source link?
Referring to statistics, facts, and quotes, always use source links for credit. Mention the source in the content, then use the source webpage as the target URL with the source as anchor text. Whenever possible, cite the original source. Link only to trustworthy pages, not competitors or the same page multiple times, and avoid more than three links in one paragraph.
Quick Security Tip
You know the Last Account Activity in account settings? That’s now Active Sessions. You can find your Tumblr’s registered email in Account Settings or apps. Look over the last 30 days of web activity for anything suspicious and end it with a click.