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.
Javascript, PhP and SEO Impact?
-
What are the Pro's and Con's of using Java Script and PHP in a site when factoring in SEO?
-
Alan's answer is spot on.
Avoid javaScript or carefully follow best-practices so Google can crawl all content without reading javaScript. Alan is exactly right when he said: never count on Google crawling through your JavaScript to find content, but also never count on being able to hide anything from Google via JavaScript.
Whether you use PHP or not is not directly relevant. PHP is executed server-side, so Google never sees your PHP code and doesn't care. What matters is whether your programmer writes PHP code that will generate search friendly HTML code, url structure, etc.
-
JavaScript is one of several technologies that offers severe limitations in search engines and their ability to properly see content, then just as important but often overlooked, properly and cleanly evaluate that content from an SEO perspective.
Specific considerations:
- Google does a "fair" job at discovering content passed through JavaScript (either on-page or at the code level)
- A "fair" job means it's hit and miss as to whether their system can actually find that content
- Whatever content the Google system CAN find via JavaScript is NOT necessarily able to be used to properly evaluate content intent, focus or relationship to other content
So - the best practices recommendation is if you want/need content to be found and properly evaluated by Google (or Bing) do NOT pass it through JavaScript.
And also, if you want to HIDE content from Google, don't assume you can successfully do so via JavaScript either.
As for PHP, its the most widely adopted and utilized web programming language out there. The language by itself is essentially SEO neutral. It's all in how a programmer utilized PHP that matters. In the hands of a programmer that either truly understands SEO or collaborates closely with an SEO expert (who also understands the limitations/pitfalls that can arise with "bad" (SEO-unfriendly) PHP coding, it's a great language.
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
-
Location of body text on page - at top or bottom - does it matter for SEO?
Hi - I'm just looking at the text on a redesigned homepage. They have moved all the text to the very bottom of the page (which is quite common with lots of designers, I notice - I usually battle to move the important text back up to the top). I have always ensured the important text comes at the top, to some extent - does it matter where on the page the text comes, for SEO? Are there any studies you can point me to? Thanks for your help, Luke
Web Design | Jan 27, 2017, 12:22 PM | McTaggart2 -
Client Portal and SEO Considerations?
Hi Moz and Moz fans, We are looking to add a client portal to the website. Basically, I haven't found too much on this with regard to SEO. The idea would be that certain parts of the website would be hidden under a pay wall and for subscribers, they would be able to see all content. I am wondering if anyone has any experience with that and what SEO considerations to take into account. One thing we are particularly concerned about is how Google will index the portions of the website behind the pay wall, if at all. Obviously, we would rather that they don't index it, so that people can't find a way to get to the info without paying. I would imagine it would have to do with the type of coding, however, I am not a coding guru, so I am not 100% on that. Anyway, anyone that has any experience in this kind of thing and can comment on this at all, any comment is welcome. Also, any documentation that could be helpful would be welcome too. Thanks
Web Design | Jun 16, 2016, 11:07 AM | Brian_Dowd0 -
Prismic.io CMS and SEO?
Looking for community feedback: Some of our In house developers want to use Prismic.io over Wordpress for it's alleged ease of organizing and "deploying" content. It's essentially a repository for content from which you make API calls to. It's a rather new platform. There a few posts in Quora around SEO but looking to see if anyone has had experience with platform. My concern is around page load times, excessive server requests, and content viewed as code. Any thoughts/ experiences would be much appreciated!
Web Design | Aug 20, 2015, 7:20 PM | ArcherMalmo0 -
How can a Pincode finder website be SEO optimised?
Guys, I wanted to build a simple Pincode finder website for India. The targeted visitors as is obvious will be from India. Alike other Pincode finder websites, the users in this case too will have to key in the location / area of whose pincode he is looking for and they will get Pincode from that very location / area. Other than this, users will also come to this website when they search for something like " <location name="">pincode</location>" on Google (for instance, users will search for something like "Hiranandani Gardens Powai Pincode") Along with data fethced from our sources via Indian postal departments and other data available in public domain, we shall be using data from Google Maps API too. My question in regards to the same is as follows: What should the page-structure / structure of the website be for ranking well on Google? What should be the URL structure? Other suggestions to rank well on Google in this regards? Competition: (You can search for the term "Hiranandani Gardens Powai Pincode" to know how these sites show data) http://www.getpincode.info http://www.pincode.net.in Pls. help...
Web Design | Mar 5, 2014, 12:56 PM | ShalinTJ0 -
Confluence and SEO
I think this is a difficult question so apologies in advance and any help would be appreciated! We currently have a large amount of support center content sitting on our main pages which we don’t think is very effective (mainly basic how to guides). We think it is difficult for visitors to understand and the UI is very poor. In order to solve this we’re currently moving this content onto a subdomain using Confluence, a wiki based team collaboration tool (from a company called Atlassian). What we’re planning on doing is very much like what Atlassian themselves have done on this page: https://confluence.atlassian.com/display/ALLDOC/Atlassian+Documentation What are the SEO issues / dangers that I need to consider before moving this content? I’m assuming that as this content will still be on the same domain then we can minimise link equity / authority loss by setting up re-directs to the new content. Also, has anyone had any experience of using Confluence and whether individual pages can be optimised for SEO? I notice that there are lots of add-ins that can be used, one of which is an SEO add-on which allows you to customise things like meta description tags.
Web Design | Apr 11, 2019, 11:25 AM | RG_SEO0 -
WIX? is it any good for SEO
Hi people. I have just built my website www.bellagiolimousines.com.au using WIX. I am in the process of optimising for SEO, and after reading a couple of older posts i.e 2012; I read that some SEO consultants do not like WIX. However with their recent upgrades, I was hoping if anyone else has had any recent experience with WIX? I have spent a considerable amount of time building this site, and I don't want to waste anymore time in optimising it, if I am not going to receive a top 3 organic SERP. Hope to hear from someone real soon!
Web Design | Apr 11, 2017, 9:35 AM | Giorgio680 -
SEO Issues From Image Hotlinking?
I have a client who is hotlinking their images from one of their domains. I'm assuming the images were originally stored on the first domain (let's call it SiteA.com) and when they were putting together SiteB.com, they decided to just link to the images directly on SiteA.com instead of moving the images to Site B. Essentially hotlinking. Site A is not using the images in any way and in essence is just a gateway for their other sites and in this case a storage for their images. It doesn't use those images at all, so it really doesn't get any benefits of the images being referenced since I read that Google sometimes counts that hotlinking as a "vote" for the original image. But again, since ite A doesn't use the images that are being hotlinked at all, there's no benefit for Site A. My concern is that it's affecting their SEO for Site B because it makes it look like Site B is simply scraping data by hotlinking those images from Site A. Their programmer suggested creating a virtual directory so that it "looked" like it was coming from Site B. My guess is that Google can see this, so then not only will it look like Site B is scaping/hotlinking images, but also trying to hide it which may send up red flags to Google. My suggesstion to them was to just upload the images correctly into their own images directory on Site B. They own the images, so there's not any copyright issue, but that if they want proper SEO credit for that content, it all needs to be housed on the correct server and not hotlinked. Am I correct in this or will the virtual directory serve just as well?
Web Design | Mar 4, 2013, 7:12 PM | GeorgiaSEOServices1 -
Does using Wordpress Multisite have any negative SEO impact?
I manage multiple websites in Wordpress and the idea of managing them all under one Wordpress install is very attractive. Are there any dangers SEO-wise to doing so? I know that all of the sites would live under the same IP address, but that's not something I'm really concerned with anyway because I don't do a lot of inter-linking between the sites. Thanks for your help! -El Juano
Web Design | Sep 19, 2011, 4:20 PM | JonathanFashbaugh0
