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.
Deferred javascript loading
-
Hi! This follows on from my last question.
I'm trying to improve the page load speed for http://www.gear-zone.co.uk/.
Currently, Google rate the page speed of the GZ site at 91/100 – with the javascript being the only place where points are being deducated. The only problem is, the JS relates to the trustpilot widget, and social links at the bottom of the page – neither of which work when they are deferred.
Normally, we would add the defer attribute to the script tags, but by doing so it waits until the page is fully loaded before executing the scripts. As both the js I mentioned (reviews and buttons) use the document.Write command, adding this would write the code off the page and out of placement from where they should be.
Anyone have any ideas?
-
Ive run your site through the Page Speed tool here and you get 94/100 (which is awesome!).
No idea on the JS sorry
I'd be more than happy with 94/100!
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
-
Can Google Crawl & Index my Schema in CSR JavaScript
We currently only have one option for implementing our Schema. It is populated in the JSON which is rendered by JavaScript on the CLIENT side. I've heard tons of mixed reviews about if this will work or not. So, does anyone know for sure if this will or will not work. Also, how can I build a test to see if it does or does not work?
Intermediate & Advanced SEO | | MJTrevens0 -
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 -
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.
Intermediate & Advanced SEO | | JBGlobalSEO
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 image if (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 🙂0 -
Pagination loading with using AJAX. Should I change this?
Hello, while I was checking this site; http://www.disfracessimon.com/disfraces-adultos-16.html I found that the pagination is working this way http://www.disfracessimon.com/disfraces-adultos-16.html#/page-2
Intermediate & Advanced SEO | | teconsite
http://www.disfracessimon.com/disfraces-adultos-16.html#/page-3 and content is being loaded using AJAX. So, google is not getting the paginated results. Is this a big issue or there is no problem?
Should I create a link for See All Products or there is not a big issue? Thank you!0 -
How can I prevent duplicate pages being indexed because of load balancer (hosting)?
The site that I am optimising has a problem with duplicate pages being indexed as a result of the load balancer (which is required and set up by the hosting company). The load balancer passes the site through to 2 different URLs: www.domain.com www2.domain.com Some how, Google have indexed 2 of the same URLs (which I was obviously hoping they wouldn't) - the first on www and the second on www2. The hosting is a mirror image of each other (www and www2), meaning I can't upload a robots.txt to the root of www2.domain.com disallowing all. Also, I can't add a canonical script into the website header of www2.domain.com pointing the individual URLs through to www.domain.com etc. Any suggestions as to how I can resolve this issue would be greatly appreciated!
Intermediate & Advanced SEO | | iam-sold0 -
What is the point of having images clickable loading to their own page?
Hello, Noticed a lot of sites, usually wordpress (seems to be the default) have the images in their posts clickable that load to their own page, showing just the image, usually a .jpg page. I know these pages seem to be easily indexed into google image search and can drive traffic to those specific pages... My questions are... 1. What is the point of driving traffic to a page that is just the image, there are no links to other pages, no ads, nothing... 2. can you redirect these .jpg pages to the actual post page? I ask because on google image search, there are 3 links to click (website, image link, image page), when you click to view the image, it loads the .jpg page, why not have that .jpg redirect to the real content page that has ads and also has other links. Is this white-hat? 3. Do these pages with just images have any negative effect on optimization since they are just images, no content? 4. Can you monetize these .jpg pages? 5. What is the best practice? I understand there is value in traffic, but what is the point of image traffic if I can't monetize those pages?
Intermediate & Advanced SEO | | WebServiceConsulting.com0 -
Can Google read my backlink in Javascript??
Hi SeoMoz community! I have a software product, which our clients implement onto their websites. It is like a pop up box. I know that backlinks are very important for SEO ranking, and I really want to give our clients 2 options of product: 1. you can get the free/cheaper option if you use the code which has a keyworded backlink to our site on it 2. you can pay small fee if you don't want to use the version with a link to our site on it Now, the problem is that the product is written entirely in Javascript, and I don't think that Google crawls this, do they? Is there a way around this? Thanks for your help!
Intermediate & Advanced SEO | | qdigi0 -
Multiple IPs (load balancing) for same domain
Hello, I'm considering moving our main website to a multiple servers, perhaps in multiple different datacenters and use a DNS round robin load balancing by assigning it 4 different IP addresses (probably from 4 different C classes). example:
Intermediate & Advanced SEO | | maddogx
ourdomain.com A 1.1.1.1
ourdomain.com A 2.2.2.2
ourdomain.com A 3.3.3.3
ourdomain.com A 4.4.4.4 Every time you ping the domain you will get a response from another IP of the group. Therefore search engines will see a different IP each time they scan the site. We have used the main IP for our website for past 6 years without changing it. We have a quite good SEO in our niche which I don't want to loose of course. My question is, will adding more IPs to the domain affect any how on the ranking ? What is the suggested way to do it anyway? What is recommended to do before and after? Thanks for you attention and help in advance. Dmitry S.0