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.
Does google credit links from iFrames or created by Javascript, if so, is one more powerful than the other?
-
Consider this example, because I want to be clear about what I mean. You have two websites. Lets all them www.a.com and www.b.com.
On www.a.com/some/page, there is an iframe something like this:
<iframe src="www.b.com/some/special/path"></iframe>
Then content of this iframe is a bunch of pictures, text and numbers, as well as a group of links, linking each picture to www.b.com for example the links might be:
www.b.com/content/1
www.b.com/content/2
www.b.com/content/3Questions:
- When google crawls **www.a.com/some/page, **does it pass link juice to www.b.com/content/*?
- Does google instead consider these to be internal links within b.com itself. because links to www.b.com/content/ ** are actually from b.com itself, since the domain of the iframe is actually: www.b.com/some/special/path 3) Is there any amount of link juice passed from www.a.com/some/page to* www.b.com/some/special/path **because this is the src= element of an iframe that a.com is hosting?
Consider an alternative setup. Where instead of using an iframe the contents of the above described iFrame is actually added the the page dynamically using javascript, and a call to an API endpoint at b.com. Resulting in these links being added directly to the body of a.com without being wrapped in an iframe element.
Questions:
4) Do these links that were created after page load still get crawled and credited by google? (i have heard in the past that google was going to start crawling javascript, i just don't know if this is known for a fact yet).
5) Do links created on the client side hold the same weight as a link that was served directly via the backend html generation?- If both the links within the iframe and the links within the javascript embed method pass link juice. Is one preferred over the other? is one known to be more effective than the other?
Thanks!
-
Hi there.
In short, Yes, iframes will pass link juice, but to the page, which is a source of iframe, not to pages, which are linked inside the iframe. And no, javascript created links are not passing rank flow.
When using iframe, basically what you are doing is you are pointing to the container on another website, and whatever is inside that container, it's hosted on that another website. That's why rank flows only to src link.
As for JS created links - they are considered hidden, devalued or obfuscated. Refer to this page on MOZ - https://moz.com/learn/seo/internal-link
Hope this helps.
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
-
Chinese Sites Linking With Bizarre Keywords Creating 404's
Just ran a link profile, and have noticed for the first time many spammy Chinese sites linking to my site with spammy keywords such as "Buy Nike" or "Get Viagra". Making matters worse, they're linking to pages that are creating 404's. Can anybody explain what's going on, and what I can do?
Intermediate & Advanced SEO | | alrockn0 -
Will Google View Using Google Translate As Duplicate?
If I have a page in English, which exist on 100 other websites, we have a case where my website has duplicate content. What if I use Google Translate to translate the page from English to Japanese, as the only website doing this translation will my page get credit for producing original content? Or, will Google view my page as duplicate content, because Google can tell it is translated from an original English page, which runs on 100+ different websites, since Google Translate is Google's own software?
Intermediate & Advanced SEO | | khi50 -
Disavowin a sitewide link that has Thousands of subdomains. What do we tell Google?
Hello, I have a hosting company that partnered up with a blogger template developer that allowed users to download blog templates and have my footer links placed sitewide on their website. Sitewides i know are frowned upon and that's why i went through the rigorous Link Audit months ago and emailed every webmaster who made "WEBSITENAME.Blogspot.com" 3 times each to remove the links. I'm at a point where i have 1000 sub users left that use the domain name of "blogspot.com". I used to have 3,000! Question: When i disavow these links in Webmaster tools for Google and Bing, should i upload all 1000 subdomains of "blogspot.com" individually and show Google proof that i emailed all of them individually, or is it wise to just include just 1 domain name (www.blogspot.com) so Google sees just ONE big mistake instead of 1000. This has been on my mind for a year now and I'm open to hearing your intelligent responses.
Intermediate & Advanced SEO | | Shawn1240 -
Dummy links in posts
Hi, Dummy links in posts. We use 100's of sample/example lnks as below http://<domain name></domain name> http://localhost http://192.168.1.1 http:/some site name as example which is not available/sample.html many more is there any tag we can use to show its a sample and not a link and while we scan pages to find broken links they are skipped and not reported as 404 etc? Thanks
Intermediate & Advanced SEO | | mtthompsons0 -
Does Google hate wordpress?
I have my categories pages set to noindex, follow. I deactivated the author and date based archives, and all the /page/2 /page/3 are noindex. Is this the right approach? I had thought about adding some text to the topic of each category page and then changing them to index. I'm using showing recent post excerpts on the homepage. Another other suggestions? I think two of my sites are in panda for no good reason. It seems like non-wordpress blogs in my industry do better than comparable wordpress sites.
Intermediate & Advanced SEO | | KateV0 -
One Way Links vs Two Way Links
Hi, Was speaking to a client today and got asked how damaging two way links are. i.e. domaina.com links to domainb.com and domainb.com links back to domaina.com. I need a nice simple layman's explanation of if/how damaging they are compared to one way links. And please don't answer with you lose link juice as I have a job explaining link juice.... I am explaining things to a non techie! Thank you!!
Intermediate & Advanced SEO | | JohnW-UK0 -
How Google treat internal links with rel="nofollow"?
Today, I was reading about NoFollow on Wikipedia. Following statement is over my head and not able to understand with proper manner. "Google states that their engine takes "nofollow" literally and does not "follow" the link at all. However, experiments conducted by SEOs show conflicting results. These studies reveal that Google does follow the link, but does not index the linked-to page, unless it was in Google's index already for other reasons (such as other, non-nofollow links that point to the page)." It's all about indexing and ranking for specific keywords for hyperlink text during external links. I aware about that section. It may not generate in relevant result during any keyword on Google web search. But, what about internal links? I have defined rel="nofollow" attribute on too many internal links. I have archive blog post of Randfish with same subject. I read following question over there. Q. Does Google recommend the use of nofollow internally as a positive method for controlling the flow of internal link love? [In 2007] A: Yes – webmasters can feel free to use nofollow internally to help tell Googlebot which pages they want to receive link juice from other pages
Intermediate & Advanced SEO | | CommercePundit
_
(Matt's precise words were: The nofollow attribute is just a mechanism that gives webmasters the ability to modify PageRank flow at link-level granularity. Plenty of other mechanisms would also work (e.g. a link through a page that is robot.txt'ed out), but nofollow on individual links is simpler for some folks to use. There's no stigma to using nofollow, even on your own internal links; for Google, nofollow'ed links are dropped out of our link graph; we don't even use such links for discovery. By the way, the nofollow meta tag does that same thing, but at a page level.) Matt has given excellent answer on following question. [In 2011] Q: Should internal links use rel="nofollow"? A:Matt said: "I don't know how to make it more concrete than that." I use nofollow for each internal link that points to an internal page that has the meta name="robots" content="noindex" tag. Why should I waste Googlebot's ressources and those of my server if in the end the target must not be indexed? As far as I can say and since years, this does not cause any problems at all. For internal page anchors (links with the hash mark in front like "#top", the answer is "no", of course. I am still using nofollow attributes on my website. So, what is current trend? Will it require to use nofollow attribute for internal pages?0