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.
Embedding PDF previews and maintaining crawlability/link-equity.
-
One site that I'm working on has previously had a great deal of success from the pdf preview content on the site. The pdf previews are quite substantial and rank for many many long-tail terms that drive a reasonable amount of traffic back to the site to purchase the full version of the product.
As part of a site redesign, the way the pdf previews are embedded/presented on the page is changing slightly:
The proposed modal pop-up on the new site the code looks like thie:
<object data="my-pdf-preview.pdf" type="application/pdf" style="width:100%; min-height:600px; max-height:100%;max-height:100%;"><embed src="my-pdf-preview.pdf" type="application/pdf"></object>
Where as the old code looked like this:
<object data="mt-pdf-previewpreview.pdf#view=FitH,50&scrollbar=1&toolbar=0&statusbar=0&messages=0&navpanes=0" <br="">type='application/pdf'
width='100%'
height='600'>It appears your Web browser is not configured to display PDF files.
No worries, you can download the PDF file here.</object>
Note: how previously the code contained a plain, standard link to the pdf document.
My worry is that without this link, search engines won't a) be able to discover/crawl the pdf content or b) pass any link-equity to these pdfs.
Does anyone have any experience/recommendations about this? I'd like to have some information before I request that they add a plain link to the pdf previews back onto the on-page content.
-
That's the route I'd push for as well I think.
Agreed on experimentation. Please report back if you get a chance to test this. Perhaps choose a small number of PDFs on this site redesign and leave the link off of them?
-
Thanks Kane - I've managed to make the case for a real-simple "download preview pdf" link so at least I feel comfortable that they won't lose too much of this "hidden" traffic.
It would still be nice to understand how <embed> is handled and whether any link-equity passes though the embed. Tight deadlines on projects don't mean you have time to experiment.
-
I haven't seen any studies with <embed> the way I have with <iframe>. <embed> is also used for video and flash, but neither would be indexed the same way as PDF so hard to compare. The embed tag is pretty standardized, so I really doubt they wouldn't crawl this similarly.</p> <p>IIRC in the ugly era of flash, it was proper to have a <noscript> {crawlable content here} </noscript> section after the <embed>, so that's one comparable situation, but that's due to the flash itself not being crawled well.</p> <p>If it's not a hassle, I would add the text link to the PDF that says "download full PDF" or similar. If it is a hassle and takes longer than a couple hours, then it's a harder call.</p> <p>Similar thread that could be helpful:</p> <ul> <li><a href="http://stackoverflow.com/questions/3686331/does-google-index-html-content-supplied-by-the-object-tag">http://stackoverflow.com/questions/3686331/does-google-index-html-content-supplied-by-the-object-tag</a></li> </ul></iframe>
-
Search engines will still be able to crawl the PDF. They crawl images, don't they?
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
-
What does Disallow: /french-wines/?* actually do - robots.txt
Hello Mozzers - Just wondering what this robots.txt instruction means: Disallow: /french-wines/?* Does it stop Googlebot crawling and indexing URLs in that "French Wines" folder - specifically the URLs that include a question mark? Would it stop the crawling of deeper folders - e.g. /french-wines/rhone-region/ that include a question mark in their URL? I think this has been done to block URLs containing query strings. Thanks, Luke
Intermediate & Advanced SEO | Mar 21, 2017, 10:39 AM | McTaggart0 -
Pages with excessive number of links
Hi all, I work for a retailer and I've crawled our website with RankTracker for optimization suggestions. The main suggestion is "Pages with excessive number of links: 4178" The page with the largest amount of links has 634 links (627 internal, 7 external), the lowest 382 links (375 internal, 7 external). However, when I view the source on any one of the example pages, it becomes obvious that the site's main navigation header contains 358 links, so every new page starts with 358 links before any content. Our rivals and much larger sites like argos.co.uk appear to have just as many links in their main navigation menu. So my questions are: 1. Will these excessive links really be causing us a problem or is it just 'good practice' to have fewer links
Intermediate & Advanced SEO | Feb 17, 2016, 8:48 AM | Bee159
2. Can I use 'no follow' to stop Google etc from counting the 358 main navigation links
3. Is have 4000+ pages of your website all dumbly pointing to other pages a help or hindrance?
4. Can we 'minify' this code so it's cached on first load and therefore loads faster? Thank you.0 -
Linking to URLs With Hash (#) in Them
How does link juice flow when linking to URLs with the hash tag in them? If I link to this page, which generates a pop-over on my homepage that gives info about my special offer, where will the link juice go to? homepage.com/#specialoffer Will the link juice go to the homepage? Will it go nowhere? Will it go to the hash URL above? I'd like to publish an annual/evergreen sort of offer that will generate lots of links. And instead of driving those links to homepage.com/offer, I was hoping to get that link juice to flow to the homepage, or maybe even a product page, instead. And just updating the pop over information each year as the offer changes. I've seen competitors do it this way but wanted to see what the community here things in terms of linking to URLs with the hash tag in them. Can also be a use case for using hash tags in URLs for tracking purposes maybe?
Intermediate & Advanced SEO | Apr 22, 2015, 5:06 PM | MiguelSalcido0 -
Internal Links - Dofollow or Nofollow and why?
Hey there Mozzers, I am a question about internal links. If I am writing a article about something and want to link to another one of my articles inside my blog, do i have to make that link nofollow or dofollow? If possible tell me why also. Thanks in advance
Intermediate & Advanced SEO | Feb 23, 2015, 7:39 AM | Angelos_Savvaidis0 -
Multiple Internal links to same destinations
My company is redoing our homepage and there will be 4 links to our main play pages (5 games). 2 in the menu and 2 within the content. I was thinking I should no follow one of the links on the homepage + 1 in the menu so that we don't have link dilution from having multiple internal links to the same destination within 1 page. Does this make sense? Any downside of this or suggestions of a solution that may be more effective? Thanks!
Intermediate & Advanced SEO | Sep 9, 2014, 11:59 AM | theLotter0 -
Wikipedia links - any value?
Hello everyone. We recently posted some of our research to Wikipedia as references in the "External Links" section. Our research is rigorous and has been referenced by a number of universities and libraries (an example: https://www.harborcompliance.com/information/company-suffixes.php). Anyway, I'm wondering if these Wikipedia links have any value beyond of course adding to the Wiki page's information. Thanks!
Intermediate & Advanced SEO | Jan 28, 2014, 1:03 AM | Harbor_Compliance0 -
Do links to PDF's on my site pass "link juice"?
Hi, I have recently started a project on one of my sites, working with a branch of the U.S. government, where I will be hosting and publishing some of their PDF documents for free for people to use. The great SEO side of this is that they link to my site. The thing is, they are linking directly to the PDF files themselves, not the page with the link to the PDF files. So my question is, does that give me any SEO benefit? While the PDF is hosted on my site, there are no links in it that would allow a spider to start from the PDF and crawl the rest of my site. So do I get any benefit from these great links? If not, does anybody have any suggestions on how I could get credit for them. Keep in mind that editing the PDF's are not allowed by the government. Thanks.
Intermediate & Advanced SEO | Jun 23, 2013, 6:11 PM | rayvensoft0 -
Links from new sites with no link juice
Hi Guys, Do backlinks from a bunch of new sites pass any value to our site? I've heard a lot from some "SEO experts" say that it is an effective link building strategy to build a bunch of new sites and link them to our main site. I highly doubt that... To me, a new site is a new site, which means it won't have any backlinks in the beginning (most likely), so a backlink from this site won't pass too much link juice. Right? In my humble opinion this is not a good strategy any more...if you build new sites for the sake of getting links. This is just wrong. But, if you do have some unique content and you want to share with others on that particular topic, then you can definitely create a blog and write content and start getting links. And over time, the domain authority will increase, then a backlink from this site will become more valuable? I am not a SEO expert myself, so I am eager to hear your thoughts. Thanks.
Intermediate & Advanced SEO | Apr 18, 2013, 8:24 AM | witmartmarketing0
