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
-
How is Single Page Application (SPA) bad for SEO
Hi guys. I am quite inspired of SPA technique. It's really amazing when all your interaction with the site is going on the fly and you don't see any page reloads. I've started implementing the site with this instruction and already found nice guys to make the design. The only downside of the using SPA which I can see **is the **SEO part. That's because the URL does not really change and different pages don't have their unique URL addresses.
Web Design | | Billy_gym
Actually they have, but it looks like: yoursite.com/#/products yoursite.com/#/prices yoursite.com/#/contact So all of them goes after # and being just anchors. For Google this mean all of these pages is just yoursite.com/ My question is what is really proven method to implement the URL structure in Single Page Application, so all the pages indexed by Google correctly (sorry I don't mention the other search engines because of market share). The other question, of course, is examples. It will be great to see real life site examples, better authority sites, which use SPA technique and well indexed by search engines.1 -
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 | | Brian_Dowd0 -
Have an eBook. What is best practice for SEO?
Hello We have a free eBook - its a great resource and great piece of content. It is available to download on our website here - http://re-timer.com/the-product/how-to-sleep-better/ The book is available as a whole or as individual chapters (i.e. http://re-timer.com/app/uploads/2015/07/Chapter8.pdf?b0df38). The PDF chapters appear to be doing well in Google search for certain keywords. I can't measure this in GA though. I would like the eBook to assist the SEO of my website overall. If I create a web page and 'embedded' the PDF into it will Google still crawl this page? At the moment we are also using this to collect email addresses, this is a nice to have and it is OK if people get the eBook without doing this (if they find a chapter in Google they currently don't have to enter their email address). I'm sure lots of people have eBooks now. What is best practice and the best way to use this as a tool to maximise SEO for the whole website (http://re-timer.com)? Thank you! Laura
Web Design | | LauraFalls1 -
Woocommerce SEO and Product attributes
Hi friends! I have a question that is advanced Woocommerce and seo-related.
Web Design | | JustinMurray
I'm seeing http://www.mywebsitex.com/pa_keyword/indexed in Google, but it cannot be properly optimized, and I would prefer to have a WordPress Page indexed for that keyword instead, which also lists those products and can be fully seo optimized. Woocommerce SEO plugin by Yoast lacks documentation and I have no clue if that would even fix this. I do have the Taxonomy (pa_keyword) set to not include these in the sitemap, but there doesn't seem to be a way to noindex/nofollow product attributes.
1. How can I best accomplish this?
2. Why are product attributes indexed by default?0 -
How to know if a wordpress theme is coded correctly for Seo
Hi, So I am curious if there is a tool to see if a site is coed properly for Google? I am running Avada, a standalone theme, yet I am also using a cache plugin. But when I search my code, its all like on one huge line. So I am curious if there is a way to verify or check if a theme is coded correctly? Thank you
Web Design | | Berner1 -
Having a second homepage for a site would affect my SEO?
Hello guys, One of our clients is planning to have a new landing page for any users hitting the site for the first time. (returning users will still see the current homepage based on cookies ... in other words, the site would technically have 2 home pages). According to this client, they are planning to do something like this: https://www.websitename.com/ (for returning visitors) https://www.websitename.com/newuser (for first time visitors) Our instinct is that is not great to have 2 home pages (that would affect the SEO campaign we are managing for this company) and we are not sure how to handle this. That's why we would appreciate your opinion regarding this topic: From an SEO perspective, do you think this is a good idea? If not, what would you guys do differentiate first-time visitors vs returning visitors without affecting SEO? Maybe just a pop-up? Thanks in advance for your help !
Web Design | | Robertnweil10 -
Does having a Blog link in the top level navigation provide any better SEO value, or would having it in a footer or top navigation work just as good?
Trying to decide on whether placing a link to the blog in our top level navigation would have a better SEO value than just placing it in top or footer navigation. I have an ecommerce site.
Web Design | | RPD0 -
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 | | GeorgiaSEOServices1