Benefits/drawbacks to different Schema markup languages (ie. JSON-LD, Microdata, RDFa)
-
Just a question (or questions) I have wondered about. What's the difference, besides the actual encoding, between the three? Why have three? Why not just the one? Seems to me that Microdata is the easiest, but maybe I am wrong. Is there a reason to use one versus another? I have not found anything explaining this on schema.org - I suppose this is just a discussion versus getting one right or wrong answer. I am just curious of the opinions of people in the SEO MOZ community. Unless of course there is one answer. I'll take that too.
-
Great, Peter. Thanks for the answers. I now understand the difference. Much appreciated.
-
That's right. JSON-LD doesn't require change of HTML compared with Microdata and RDFa. And this is one of answers why JSON-LD is beautiful. Second is because you can make changes in JSON-LD without touching HTML. Like adding new fields, parameters, etc.
About placing. I think that this can be just on home page. Placing in each page is pure rich snippet spam.
-
Hi Peter,
Thanks for the answer. So, as I understand it, and keep in mind this is coming from someone that is not very code-savvy, with JSON-LD, one could put the script anywhere in the HTML, the header, the body, the footer, etc. and it won't show up on the actual page, but the search engine will be able to read it. This implies that no changing or tweaking of the actual HTML is necessary, no messing around with 's or
's like you would with Microdata or RDFa, correct?
A follow up question, if I may, how would you implement something like a "local business" schema with JSON, would you put the script on every page, in the footer perhaps? Or would you just put it on the home page? Does it matter?
Thanks
-
So far we have Microdata, RDFa and JSON-LD.
I'll cover Microdata and RDFa in same because they're similar. So they both are addition to HTML attributes indicating what Schema.org field names correspond with what user-visible text on the page. Works perfect but need lot of developer work and designer changes. Because both backend (admin interface) and frontend (HTML) must be changed. And there are many issues that can be messed - incorrect implementation, "rich snippet spam", software bugs, etc. Look easy as 1-2-3 but in reality it's pain (PIA) for implementation and support. Example - only product implementation require in backend least 10 edit boxes if they're manual filled.
JSON-LD - it's relative new protocol based on Schema.org. The main benefit is that you split representation layer (HTML) from semantic layer (JSON-LD). In prev. formats - they're same and linked each other. Now they're split. This give you much more freedom than before. You can place HTML data whatever you wish and just add hidden JSON in head or in content that will add semantic marking. This is future (for now).
If you wish to read more about creation of JSON-LD then this article is for you:
http://manu.sporny.org/2014/json-ld-origins-2/
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
Browse Questions
Explore more categories
-
Moz Tools
Chat with the community about the Moz tools.
-
SEO Tactics
Discuss the SEO process with fellow marketers
-
Community
Discuss industry events, jobs, and news!
-
Digital Marketing
Chat about tactics outside of SEO
-
Research & Trends
Dive into research and trends in the search industry.
-
Support
Connect on product support and feature requests.
Related Questions
-
Anyone have a good process for Schema.org auditing?
I am looking to do a Schema.org audit across a large number of websites that all run on the same platform. I'm not really sure where to start and what format to use for a deliverable. I suppose starting by checking for errors on the current schema and documenting them and then moving on to additional schema that could be added to the JSON+LD? My last structured data audit I just used a spreadsheet and it didn't come out as neat as I would have liked. Anyone who has some experience in this, your input would be much appreciated!
Intermediate & Advanced SEO | | MJTrevens0 -
Tough 301 redirect with a /www in it
Hi Mozzers, I'm using Eggplants 301 redirect via wordpress and for some reason I can't redirect one url. The example of it is below: www.website.com/news/www.website.com As you can see, it looks like there's 2 url's and this plugin doesn't do the trick. Does anyone have any suggestions? Maybe via .htaccess? Thank you!
Intermediate & Advanced SEO | | Shawn1240 -
Two Different Domains exact same content
Hello, I suspect I know the answer to this but would like to have it confirmed. I have been speaking to a company the last couple of weeks who have 2 domains with the exact same content. Possible a third but they haven't supplied a link. This from all I've read would be a huge problem for ranking and SEO. What would be the best way to deal with this ? I did do a search and found articles/questions on same content on the same site and in articles etc but nothing about exactly the same websites on 2 domains. Cheers David.
Intermediate & Advanced SEO | | techdesign0 -
Duplicate content on .com .au and .de/europe/en. Would it be wise to move to .com?
This is the scenario: A webstore has evolved into 7 sites in 3 shops: example.com/northamerica example.de/europe example.de/europe/en example.de/europe/fr example.de/europe/es example.de/europe /it example.com.au .com/northamerica .de/europe/en and .com.au all have mostly the same content on them (all 3 are in english). What would be the best way to avoid duplicate content? An answer would be very much appreciated!
Intermediate & Advanced SEO | | SEO-Bas0 -
Schema Training
What is the best way to familiarize myself with schema and updating it on the website. I know it is important and I understand the concept. It's the implementation and actual mark-up that I struggle with. Are there certifications or courses I could take that would teach me implementation techniques? Is there a blog or person I should follow that is awesome at explaining it?
Intermediate & Advanced SEO | | In-House-SEO-Team0 -
Benefit of Diversifying Your Hosting Providers
Is there a benefit to diversifying your hosting providers? I mean if there are 10 client sites on one shared hosting package and they all have links to my company because we give ourselves credit on all the sites we build. Will Google give the links to me less weight or even look at it as some link building scheme? Does private registration prevetn things like this. Would it help if i got my own IP's from different C blocks? Thank you in advance Mozzer family!!
Intermediate & Advanced SEO | | WebbyNabler0 -
Different website is shown when searched for content
Hello, Have any body experienced this situation, When i take a content from http://www.creativethemes.net e.g. from home page and search it on google, search results shows FMEextensions with that content. FME had never ever used that data, it can not be found in sources files either, also this data was never written and placed on FME site but it is shown with FME How can this happen and what do you suggest to resolve it?
Intermediate & Advanced SEO | | MozAddict0 -
Is it bad to host an XML sitemap in a different subdomain?
Example: sitemap.example.com/sitemap.xml for pages on www.example.com.
Intermediate & Advanced SEO | | SEOTGT0