What is the difference between the two names? Thanks.
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1I think that this question is more appropriate for Super User. – Cristian Ciupitu Sep 07 '09 at 17:04
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9Not if you're designing a blog! – Charlie Salts Sep 07 '09 at 17:05
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3IMO, it's not a question about a general computer-related question, I'm asking here about developing a blogging platform. – Moayad Mardini Sep 07 '09 at 17:06
5 Answers
The pingback automatically finds URI’s in the post and pings them while a trackback needs to have a URI entered manually.
See this Whitepaper: Pingback vs Trackback

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Both Trackback and Pingback allow you to notify other URLs (webpages) that you linked to them from your page (e.g. a blog post).
The difference between both are:
- Trackback uses a simple HTTP POST request to notify the other side, while Pingback uses XML-RPC.
- Trackback support on the remote site has to be discovered by parsing the HTML source for some commented RDF, while the Pingback URL is sent as HTTP header.
- By using the HTTP header, pingbacks are possible for files other than HTML, e.g. images and videos.
- The Trackback specification leaves many things undefined, while the Pingback spec is very clear.
- The pingback specification requires pingback receivers to check if the original URL contains a link to them. This is not necessary for trackbacks.
What the others said about "automatic": This has nothing to do with both specs. It's your blogging software that (automatically or not) sends requests to the remote servers for any links in your blog post.

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Both Pingback & Trackback offer bloggers the facility to be in touch between websites.
Pingback:
- A writes a post on B’s blog.
- B writes a post on B’s blog mentioning/linking to A article.
- B’s blogging software will automatically send a pingback to A.
- A’s blogging software will receive the pingback. It will then automatically go to B’s blog to confirm that the pingback originates there (the link is present).
- Then A will have the ability to display B’s pingback as A’s comment. This will solely be a link to B’s site. Pingbacks also work within your site. So if one of your posts link to another post, then your WordPress will send a self-ping. This can get really annoying.
Trackback:
- A writes a post on B’s blog.
- B wants to comment on A’s post, but B want his/her own readers to see what he/she have to say and able to comment on it.
- B will then write a post on his/her blog and send a trackback to A’s blog post.
- A will receive B’s trackback, and choose to display it as a comment or not. The comment display will be a title, excerpt and a link to B’s blog post.
--Anurag Birthare

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Pingback and Trackback use different protocols. Pingback is automatic and Trackback is manual. You can read up on the difference on Geeklog.

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Trackback URL receives a copy of the originating server's address. If enabled, a Pingback is sent to the originating server's URL to verify that it is not a spam Trackback.

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