Use "If-Modified-Since HTTP header"
-
I´m working on a online brazilian marketplace ( looks like etsy in US) and we have a huge amount of pages... I´ve been studing a lot about that and I was wondering to use If-Modified-Since so Googlebot could check if the pages have been updated, and if it is not, there is no reason to get a new copy of them since it already has a current copy in the index. It uses a 304 status code, "and If a search engine crawler sees a web page status code of 304 it knows that web page has not been updated and does not need to be accessed again." Someone quoted before me**Since Google spiders billions of pages, there is no real need to use their resources or mine to look at a webpage that has not changed. For very large websites, the crawling process of search engine spiders can consume lots of bandwidth and result in extra cost and Googlebot could spend more time in pages actually changed or new stuff!**However, I´ve checked Amazon, Rakuten, Etsy and few others competitors and no one use it! I´d love to know what you folks think about it
-
Hi,
It's a tricky one, I've looked in to this also a while ago for a site I was working on. I don't have a definitive answer but we went for another solution. Creating sitemaps and using the last_modified date element in there so hopefully Google would get when we last updated the specific pages.
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
-
Http - Https Issue
Hey there Mozzers, I have a site that few months ago went from being http - https. All the links redirect perfect but after scanning my site with Screaming Frog i get a bunch of 503 errors. After looking into my website I see that a lot of links in my content and menu have as a link the http url. For example my homepage has content that interlinks to the http version of the site. And even though when I test it it redirects correctly after scanning with Screaming frog it reports back as 503. Any ideas what's going on? Thanks in advance
Intermediate & Advanced SEO | | Angelos_Savvaidis0 -
Why is "Noindex" better than a "Canonical" for Pagination?
"Noindex" is a suggested pagination technique here: http://searchengineland.com/the-latest-greatest-on-seo-pagination-114284, and everyone seems to agree that you shouldn't canonicalize all pages in a series to the first page, but I'd love if someone can explain why "noindex" is better than a canonical?
Intermediate & Advanced SEO | | nicole.healthline0 -
After Receiving a "Googlebot can't access your site" would this stop your site from being crawled?
Hi Everyone,
Intermediate & Advanced SEO | | AMA-DataSet
A few weeks ago now I received a "Googlebot can't access your site..... connection failure rate is 7.8%" message from the webmaster tools, I have since fixed the majority of these issues but iv noticed that all page except the main home page now have a page rank of N/A while the home page has a page rank of 5 still. Has this connectivity issues reduced the page ranks to N/A? or is it something else I'm missing? Thanks in advance.0 -
To "Guest Blog" or "Ghost Blog"?
To "Guest Blog" or "Ghost Blog"? I've been wondering which would be better given G's "authorship" tracking program. "Onreact.Com" indirectly raised this issue in a recent blog post "Google Authorship Markup Disadvantages Everybody Ignores" as : "Google might dismiss your guest articles. Your great guest blogging campaign on dozens of other blogs might fail because Google will count the links all as one as the same author has written all the posts and linked to himself. So maybe the links won't count at all." Assuming all other things are equal, would you use "Guest Author" with G Authorship attribution (if allowed) or just ghost the article and include an in-text link without attribution to you as the author?
Intermediate & Advanced SEO | | JustDucky1 -
Anyone managed to decrease the "not selected" graph in WMT?
Hi Mozzers. I am working with a very large E-com site that has a big issue with duplicate or near duplicate content. The site actually received a message in WMT listing out pages that Google deemed it should not be crawling. Many of these were the usual pagination / category sorting option URL issues etc. We have since fixed the issue with a combination of site changes, robots.txt, parameter handling and URL removals, however I was expecting the "not selected" graph in WMT to start dropping. The number of roboted pages has increased by around 1 million pages (which was expected) and indexed pages has actually increased despite removing hundreds of thousands of pages. I assume this is due to releasing some crawl bandwidth for more important pages like products. I guess my question is two-fold; 1. Is the "not selected" graph cumulative, as this would explain why it isn't dropping? 2. Has anyone managed to get this figure to significantly drop? Should I even care? I am relating this to Panda by the way. Important to note that the changes were made around 3 weeks ago and I am aware not everything will be re-crawled yet. Thanks,
Intermediate & Advanced SEO | | Further
Chris notselected.jpg0 -
Could large number of "not selected" pages cause a penalty?
My site was penalized for specific pages in the UK On July 28 (corresponding with a Panda update). I cleaned up my website and wrote to Google and they responded that "no manual spam actions had been taken". The only other thing I can think of is that we suffered an automatic penalty. I am having problems with my sitemap and it is indexing many error pages, empty pages, etc... According to our index status we have 2,679,794 not selected pages and 36,168 total indexed. Could this have been what caused the error? (If you have any articles to back up your answers that would be greatly appreciate) Thanks!
Intermediate & Advanced SEO | | theLotter0 -
End of March we migrated our site over to HubSpot. We went from page 3 on Google to non existent. Still found on page 2 of Yahoo and Bing. Beyond frustrated...HELP PLEASE "www.vortexpartswashers.com"
End of March we migrated our site over to HubSpot. We went from page 3 on Google to non existent. Still found on page 2 of Yahoo and Bing under same keywords " parts washers" Beyond frustrated...HELP PLEASE "www.vortexpartswashers.com"
Intermediate & Advanced SEO | | mhart0 -
Use of <h2class="hidden">- SEO implications</h2class="hidden">
I'm just looking at a website with <h2class="hidden">Main Navigation and <h2class="hidden">Footer inserted on each page, and am wondering about the SEO implications.
Intermediate & Advanced SEO | | McTaggart
<a></a><a></a><a></a><a></a></h2class="hidden"></h2class="hidden">0