Moz Q&A is closed.
After more than 13 years, and tens of thousands of questions, Moz Q&A closed on 12th December 2024. Whilst we’re not completely removing the content - many posts will still be possible to view - we have locked both new posts and new replies. More details here.
Need a layman's definition/analogy of the difference between schema and structured data
-
I'm currently writing a blog post about schema. However I want to set the record straight that schema is not exactly the same as structured data, although both are often used interchangeably. I understand this schema.org is a vocabulary of global identifiers for properties and things. Structured data is what Google officially stated as "a standard way to annotate your content so machines can understand it..."
Does anybody know of a good analogy to compare the two?
Thanks!
-
Hi Rosemary, Dave here.
I like to think of it like our addressing system. Because we all use the same system and format for our addresses on an envelope we don't need a code to tell us but as you know ... everyone displays their product information and other data differently on a page. Because of that the engines can have difficulty telling what bit of data is what. Is "blue" the color of the product, the color of the screen or simply used on the page in a "Don't feel blue ... buy XYZ !"
Structured data, as Matt well-noted, is just an idea really of matching information with what it means. Like saying "blue" = "product color".
Of course, that's all well-and-good but we can all build our own systems and many have been. If we're all using different systems then nothing makes sense so folks got together and created Schema.org simply as a body that could help create a standard. Like saying, "on an envelop you put the name first, then the address, then the city, then the state, then the zip code". If we put things on the envelop differently things would get messy so Schema basically gives us the instruction on how to pass information across. Schema isn't the idea or even the data, it's the instructions on how to tell Google what specific data means.
Clear as mud?
-
Well, let's see.
Structured data in this sense comes down to a method of labelling elements of your site in order to clarify what they are for search engine crawlers, microdata is a form of structured data that works in HTML5, and Schema is a standard for microdata. So Schema is microdata is structured data. All Schema (in this use) is structured data, but not all structured data is Schema.
Maybe something like, if structured data represents all the team sports in the world, and microdata represents every game intended to be played on a football pitch, then Schema may be the Laws of the Game—the standard rules for international soccer.
Also, go Seattle Sounders!
-
Yes, thank you. However I'm looking for a simple layman's analogy. Most of the blog post readers are not going to be able to comprehend the technical aspects.
-
Hi Rosemary! There's actually a pretty decent explanation here: https://moz.com/learn/seo/schema-structured-data
Structured data is a system of pairing a name with a value that helps search engines categorize and index your content. Microdata is one form of structured data that works with HTML5. Schema.org is a project that provides a particular set of agreed-upon definitions for microdata tags.
Does that make sense?
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
-
Is Chamber of Commerce membership a "paid" link, breaking Google's rules?
Hi guys, This drives me nuts. I hear all the time that any time value is exchanged for a link that it technically violates Google's guidelines. What about real organizations, chambers of commerce, trade groups, etc. that you are a part of that have online directories with DO-follow links. On one hand people will say these are great links with real value outside of search and great for local SEO..and on the other hand some hardliners are saying that these technically should be no-follow. Thoughts???
Intermediate & Advanced SEO | | RickyShockley0 -
Should HTML be included in the structured data (schema) markup for the main body content?
Lately we have been applying structured data to the main content body of our client's websites. Our lead developer had a good question about HTML however. In JSON-LD, what is the proper way to embed content from a data field that has html markup (i.e. p, ul, li, br, tags) into mainContentOfPage. Should the HTML be stripped our or escaped somehow? I know that apply schema to the main body content is helpful for the Googlebot. However should we keep the HTML? Any recommendations or best practices would be appreciated. Thanks!
Intermediate & Advanced SEO | | RosemaryB0 -
Should you allow an auto dealer's inventory to be indexed?
Due to the way most auto dealership website populate inventory pages, should you allow inventory to be indexed at all? The main benefit us more content. The problem is it creates duplicate, or near duplicate content. It also creates a ton of crawl errors since the turnover is so short and fast. I would love some help on this. Thanks!
Intermediate & Advanced SEO | | Gauge1230 -
Why is my client's site not ranking anymore? Like big time!
Ok, I'm reaching out to all of you Moz'rs for some help with this one. My client's site has dropped off the face of google in a real short period of time. It went from page 1 (avg rank 3 to page 6 (avg rank 50) and below in the matter of 2 weeks. Here's some facts: 1. DA is a 22 and homepage PA is a 31. It outranks all other sites in its competitive set. 2. The homepage used to be the page that displays for keyword searches, now its the FAQ page, which has a lower PA of 23. Why has the home page seemingly vaporized? And, why is the FAQ showing as the first result? What should I start checking. I feel paralyzed, not sure where to start. More info: a. There are no alerts present in Webmaster Tools. b. For some reason the homepage (domain.com) was 301'd to domain.com/home.html. Domain.com is indexed by Google, however, domain.com/home.html is not. If this is the issue, what is the best way to handle it? Thanks in advance for your help!
Intermediate & Advanced SEO | | rhoadesjohn1 -
Other domains hosted on same server showing up in SERP for 1st site's keywords
For the website in question, the first domain alphabetically on the shared hosting space, strange search results are appearing on the SERP for keywords associated with the site. Here is an example: A search for "unique company name" shows the results: www.uniquecompanyname.com as the top result. But on pages 2 and 3, we are getting results for the same content but for domains hosted on the same server. Here are some examples with the domain name replaced: UNIQUE DOMAIN NAME PAGE TITLE
Intermediate & Advanced SEO | | Motava
ftp.DOMAIN2.com/?action=news&id=63
META DESCRIPTION TEXT UNIQUE DOMAIN NAME PAGE TITLE 2
www.DOMAIN3.com/?action=news&id=120
META DESCRIPTION TEXT2 UNIQUE DOMAIN NAME PAGE TITLE 2
www.DOMAIN4.com/?action=news&id=120
META DESCRIPTION TEXT2 UNIQUE DOMAIN NAME PAGE TITLE 3
mail.DOMAIN5.com/?action=category&id=17
META DESCRIPTION TEXT3 ns5.DOMAIN6.com/?action=article&id=27 There are more but those are just some examples. These other domain names being listed are other customer domains on the same VPS shared server. When clicking the result the browser URL still shows the other customer domain name B but the content is usually the 404 page. The page title and meta description on that page is not displayed the same as on the SERP.As far as we can tell, this is the only domain this is occurring for.So far, no crawl errors detected in Webmaster Tools and moz crawl not completed yet.0 -
Removing Dynamic "noindex" URL's from Index
6 months ago my clients site was overhauled and the user generated searches had an index tag on them. I switched that to noindex but didn't get it fast enough to avoid being 100's of pages indexed in Google. It's been months since switching to the noindex tag and the pages are still indexed. What would you recommend? Google crawls my site daily - but never the pages that I want removed from the index. I am trying to avoid submitting hundreds of these dynamic URL's to the removal tool in webmaster tools. Suggestions?
Intermediate & Advanced SEO | | BeTheBoss0 -
Do I need to use canonicals if I will be using 301's?
I just took a job about three months and one of the first things I wanted to do was restructure the site. The current structure is solution based but I am moving it toward a product focus. The problem I'm having is the CMS I'm using isn't the greatest (and yes I've brought this up to my CMS provider). It creates multiple URL's for the same page. For example, these two urls are the same page: (note: these aren't the actual urls, I just made them up for demonstration purposes) http://www.website.com/home/meet-us/team-leaders/boss-man/
Intermediate & Advanced SEO | | Omnipress
http://www.website.com/home/meet-us/team-leaders/boss-man/bossman.cmsx (I know this is terrible, and once our contract is up we'll be looking at a different provider) So clearly I need to set up canonical tags for the last two pages that look like this: http://www.omnipress.com/boss-man" /> With the new site restructure, do I need to put a canonical tag on the second page to tell the search engine that it's the same as the first, since I'll be changing the category it's in? For Example: http://www.website.com/home/meet-us/team-leaders/boss-man/ will become http://www.website.com/home/MEET-OUR-TEAM/team-leaders/boss-man My overall question is, do I need to spend the time to run through our entire site and do canonical tags AND 301 redirects to the new page, or can I just simply redirect both of them to the new page? I hope this makes sense. Your help is greatly appreciated!!0 -
Adding index.php at the end of the url effect it's rankings
I have just had my site updated and we have put index.php at the end of all the urls. Not long after the sites rankings dropped. Checking the backlinks, they all go to (example) http://www.website.com and not http://www.website.com/index.php. So could this change have effected rankings even though it redirects to the new url?
Intermediate & Advanced SEO | | authoritysitebuilder0