What is a web page snapshot? How is a web page snapshot updated? What is the purpose of a web page snapshot? I believe this series of questions about web page snapshots is something SEO optimization practitioners pay relatively close attention to. So let's first talk briefly about the relationship between web page snapshots and websites — what we mainly want to explain here is the relationship between web page snapshots and a site's rankings and indexing. Many people may mistakenly assume that the faster a web page snapshot updates, the better the site's rankings. In fact, how fast a web page snapshot updates has little to do with a site's rankings. You may also have noticed that many sites are well indexed and their snapshots update quickly, yet the site simply has no rankings. If you haven't run into this before, then keep an eye out and observe from now on, because there are plenty of sites like that. A fast snapshot update frequency only proves that the site updates its content frequently; beyond that, it has little to do with anything else. Alright, next, let me walk you through it in detail.
I. What is a web page snapshot?
The so-called web page snapshot refers to a backup of our web page that the search engine saves when it indexes your site's pages. But let me add one point here: the search engine does not guarantee that this page will exist long-term, or that the page's information will stay unchanged — for example, the page's title, description, and so on. This is one area where the search engine does a fairly good job on user experience, because if your page's title has changed or its content has changed and the search engine still showed that page to users, that would be very bad for user experience; and for the search engine itself, it would also be consuming its own server resources — so doing this really kills two birds with one stone. Therefore, for pages that have already been indexed, the search engine will crawl them again and update their indexing status, and so the web page snapshot updates along with them. We can understand web page snapshots quite simply: a web page snapshot is like the search engine taking a photograph of your site's page, and when your page's content is updated, the search engine takes another photograph for you — that's really all there is to a web page snapshot.
II. How is a web page snapshot updated?
First, we need to understand that the frequency of web page crawling and the frequency of web page snapshot updates are two different things and must not be conflated. Because for every site the search engine indexes, the search engine will send search engine spiders to crawl and fetch some of that site's pages. At this point, the search engine spider can check continuously, according to the site's content update frequency, whether pages have been updated. Generally, the crawl frequency of search engine spiders matches the speed at which the site updates its content, so what we usually call "updating" refers to the search engine spider crawling the site's content.
However, for every page newly crawled or newly checked by a search engine spider, the search engine will create index entries at different speeds according to the page's importance and timeliness value.
Generally speaking, what we call a web page snapshot update refers to the indexing time. For some important content pages on sites that update fairly often, the search engine will create and index them faster. But if it is just some pages with ordinary text changes, or content with no timeliness value, the search engine will not necessarily update and index them, because the search engine considers such pages worthless — even if the search engine spider crawls that page content again, the web page snapshot of those pages still may not update right away.
I believe that through the explanation above, you now have a concrete understanding of how web page snapshots are updated. So what are the "content page importance" and "timeliness" that have been mentioned throughout the above? Let me explain that carefully here as well.
1. What is the timeliness of a web page?
The so-called timeliness value of a web page is easy to understand: it refers to web page information being able to produce valuable content within a certain period, and it can also be understood as whether the updated content of the web page is fresh. The most commonly seen and most timely content is news articles, because the news articles written are all the latest real-time news, and these news articles are usually very easily indexed by search engines. So if you want your web page content to be indexed quickly, you can imitate the way news articles are written.
2. What is the importance of a web page?
The importance of a web page is mainly reflected in these points: for example, the reliability of the content, the authority of the content, the uniqueness of the content, the completeness of the content, and the relevance of the content. The so-called reliability of content means whether the content is genuine and valid; the authority of content means how much influence the content carries; the uniqueness of content means the quality of the content, i.e. whether it is original content; the completeness of content means whether the content describes things truthfully, faithfully describing the cause, the process and the result, and also ensuring that sentences are fluent and so on; and finally, the relevance of content means whether the content matches the title, or whether it is consistent with the positioning and development direction of the site.
III. The purpose of web page snapshots
When we open a website, if the site has some kind of error — let me give you some examples: a page error message, article content that doesn't exist, search results that won't open — or if it opens so slowly that the page cannot be accessed normally, then at that moment the web page snapshot can be of great help. As mentioned in this article, every indexed web page has a web page snapshot, and at that point we can click on these web page snapshots to quickly browse the page content, so that we can successfully open and view the content of that page which is showing an error.
That is all for "What Is a Web Page Snapshot? How Is a Web Page Snapshot Updated?" — it is provided solely for webmasters to interact, exchange and learn. SEO optimization is a process that requires persistence, and I hope we can all make progress together.
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