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.
Lazy Loading of products on an E-Commerce Website - Options Needed
-
Hi Moz Fans.
We are in the process of re-designing our product pages and we need to improve the page load speed.
Our developers have suggested that we load the associated products on the page using Lazy Loading, While I understand this will certainly have a positive impact on the page load speed I am concerned on the SEO impact.
We can have upwards of 50 associated products on a page so need a solution.
So far I have found the following solution online which uses Lazy Loading and Escaped Fragments - The concern here is from serving an alternate version to search engines.
The solution was developed by Google not only for lazy loading, but for indexing AJAX contents in general.
Here's the official page: Making AJAX Applications Crawlable.The documentation is simple and clear, but in a few words the solution is to use slightly modified URL fragments.
A fragment is the last part of the URL, prefixed by #. Fragments are not propagated to the server, they are used only on the client side to tell the browser to show something, usually to move to a in-page bookmark.
If instead of using # as the prefix, you use #!, this instructs Google to ask the server for a special version of your page using an ugly URL. When the server receives this ugly request, it's your responsibility to send back a static version of the page that renders an HTML snapshot (the not indexed image in our case).It seems complicated but it is not, let's use our gallery as an example.
- Every gallery thumbnail has to have an hyperlink like:
http://www.idea-r.it/...#!blogimage=<image-number></image-number>
- When the crawler will find this markup will change it to
http://www.idea-r.it/...?_escaped_fragment_=blogimage=<image-number></image-number>
Let's take a look at what you have to answer on the server side to provide a valid HTML snapshot.
My implementation uses ASP.NET, but any server technology will be good.var fragment = Request.QueryString[``"_escaped_fragment_"``];``if
(!String.IsNullOrEmpty(fragment))``{``var escapedParams = fragment.Split(``new``[] { ``'='
});``if
(escapedParams.Length == 2)``{``var imageToDisplay = escapedParams[1];``// Render the page with the gallery showing ``// the requested image (statically!)``...``}``}
What's rendered is an HTML snapshot, that is a static version of the gallery already positioned on the requested image (server side).
To make it perfect we have to give the user a chance to bookmark the current gallery image.
90% comes for free, we have only to parse the fragment on the client side and show the requested imageif
(window.location.hash)``{``// NOTE: remove initial #``var
fragmentParams = window.location.hash.substring(1).split(``'='``);``var
imageToDisplay = fragmentParams[1]``// Render the page with the gallery showing the requested image (dynamically!)``...``}
The other option would be to look at a recommendation engine to show a small selection of related products instead. This would cut the total number of related products down. The concern with this one is we are removing a massive chunk of content from he existing pages, Some is not the most relevant but its content.
Any advice and discussion welcome
- Every gallery thumbnail has to have an hyperlink like:
-
Ok, cool. To reiterate - with escaped_fragment you are just serving the same content in a tweaked format and Google recommend it rather than frown upon it. Good to be sure though.
See you at SearchLove!
-
Hi Tom, Thank you for the response,
The concern about serving an alt version is that it would be frowned up from a SEO perspective and may lead to a form of penalty.
I agree that escaped_fragment would be the best approach and just wanted to satisfy my own concerns before I get them working on this.
Thank you and see you at Search Love
-
Hi,
I am not sure I follow your concerns around serving an alternative version of the page to search engines - is that concern based on concerns it will be frowned upon or technical concerns?
Using the escaped_fragment methodology would work for your purposes, and would be the best approach. If you have technical concerns around creating the HTML snapshots you could look at a service such as https://prerender.io/ which helps manage this process.
If that doesn't answer your question, please give more information so we can understand more specifically where you concerns are.
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
-
E-Commerce Site Collection Pages Not Being Indexed
Hello Everyone, So this is not really my strong suit but I’m going to do my best to explain the full scope of the issue and really hope someone has any insight. We have an e-commerce client (can't really share the domain) that uses Shopify; they have a large number of products categorized by Collections. The issue is when we do a site:search of our Collection Pages (site:Domain.com/Collections/) they don’t seem to be indexed. Also, not sure if it’s relevant but we also recently did an over-hall of our design. Because we haven’t been able to identify the issue here’s everything we know/have done so far: Moz Crawl Check and the Collection Pages came up. Checked Organic Landing Page Analytics (source/medium: Google) and the pages are getting traffic. Submitted the pages to Google Search Console. The URLs are listed on the sitemap.xml but when we tried to submit the Collections sitemap.xml to Google Search Console 99 were submitted but nothing came back as being indexed (like our other pages and products). We tested the URL in GSC’s robots.txt tester and it came up as being “allowed” but just in case below is the language used in our robots:
Intermediate & Advanced SEO | | Ben-R
User-agent: *
Disallow: /admin
Disallow: /cart
Disallow: /orders
Disallow: /checkout
Disallow: /9545580/checkouts
Disallow: /carts
Disallow: /account
Disallow: /collections/+
Disallow: /collections/%2B
Disallow: /collections/%2b
Disallow: /blogs/+
Disallow: /blogs/%2B
Disallow: /blogs/%2b
Disallow: /design_theme_id
Disallow: /preview_theme_id
Disallow: /preview_script_id
Disallow: /apple-app-site-association
Sitemap: https://domain.com/sitemap.xml A Google Cache:Search currently shows a collections/all page we have up that lists all of our products. Please let us know if there’s any other details we could provide that might help. Any insight or suggestions would be very much appreciated. Looking forward to hearing all of your thoughts! Thank you in advance. Best,0 -
If my website do not have a robot.txt file, does it hurt my website ranking?
After a site audit, I find out that my website don't have a robot.txt. Does it hurt my website rankings? One more thing, when I type mywebsite.com/robot.txt, it automatically redirect to the homepage. Please help!
Intermediate & Advanced SEO | | binhlai0 -
Lazy Loading of Blog Posts and Crawl Depths
Hi Moz Fans, We are looking at our blog and improving the content as much as we can for SEO purposes, but we have hit a bit of a blank in terms of lazy loading implications and issues with crawl depths. We introduced lazy loading onto the blog home page to increase site speed initially and it works well with infinite scroll, but we were wondering whether this would cause any issues regarding SEO. A lot of the resources online seem to be conflicting and some are very outdated, so some clarification on what is best in terms of lazy loading and crawl depths for blogs, would be fantastic! I hope someone can help and give us some up to date insights - If you need anymore information, I'll reply ASAP
Intermediate & Advanced SEO | | Victoria_0 -
Google Rich Snippets in E-commerce Category Pages
Hello Best Practice for rich snippets / structured data in ecommerce category pages? I put structured markup in the category pages and it seems to have negatively impacted SEO. Webmaster tools is showing about 2.5:1 products to pages ratio. Should I be putting structured data in category Pages at all? Thanks for your time 🙂
Intermediate & Advanced SEO | | s_EOgi_Bear0 -
Website completely delisted - reasons?
Hi, I got a request from a potential client as he do not understand why his website cannot be found on Google. I've checked that and found out that the complete website is not listed (complete delist) at all - expect just one pdf file.
Intermediate & Advanced SEO | | TheHecksler
I've checked his robots.txt - but this is ok. I've checked the META Robots - but they are on index,follow ... ok so far. I've checked his backlinks but could not found any massive linking from bad pages - just 6 backlinks and only four of them from designdomains.com which looks like a linklist or so. I've requested access to their GWT account if available in hope to find more infos, but does anyone of you may have a quick idea what els it could be? What could be the issue? I think that they got delisted due to any bad reason ... Let me know your Ideas 🙂 THANX 🙂 Sebi0 -
Credit Links on Client Websites
I know there have been several people who have asked this but a lot of them were back in 2012 before many of the google changes. My question is the same though. With all the changes with Google's algorithm. Is it okay to put your link on the bottom of your clients website. Like Web Design by, etc. Part of the reason is to drive traffic but also if someone is actually interested who designed the website, they will click it. But now reading about how bad links can hurt you tremendously, it makes me second guess if this is ok. My gut feeling says, no.
Intermediate & Advanced SEO | | blackrino0 -
Cons and pros of changing your e-commerce store domain name?
We have an online toy store, the domain is old over 10 years and we have some traffic, we are considering to change our domain name. There are two reasons why. First of all, we expand our product category, before we were only a puzzle store now we sell almost any kind of toy. And at this point, our current domain, PuzzleZoo.com is not representing our capacity. We also have toyzoo.com domain registered, that is also an old domain but there has been no activity with that domain. Our concern is, how do we avoid to lose ranking and keyword authority, are we going to start from the ground? What are the correct procedures to follow during this switch if we prefer to switch? As an alternative scenario, if we decide to keep both and open another e-store with toyzoo domain name and continue operating PuzzleZoo.com, with same products, will taht be a duplicate issue? If it is what are the consequences? (Just to add a note here, our PuzzleZoo is also a small brick and mortar store chain in CA and TX) ToyZoo will only be an online store. Even in this case at the eyes of Google, are we going to have a duplicate store that can potentially be penalized or PuzzleZoo being a brick and mortar store chain might help us to avoid being penalized? Should we switch the domain and redirect PuzzleZoo to ToyZoo, should we keep them both and running separately? We need to give a decision and I was wondering if there are any expert here that can give us a good intelligent advise on which path to go?
Intermediate & Advanced SEO | | PuzzleZoo0 -
Different domains for multilingual website
Hey guys, A site that I'm currently working on as different domains for each website language. So for example: word1word2.com for the english version word3word4.com for the french version word5word6.com for spanish version .... Is it better to move all of the different languages to the same domain and use subfolders for each language /fr/... Please note that the domains being used bring in organic traffic as well as they are EMDs. Thank You.
Intermediate & Advanced SEO | | BruLee0