# Latest **URL:** https://discuss.httparchive.org/latest.md?page=3 [Latest](https://discuss.httparchive.org/latest.md) · [Categories](https://discuss.httparchive.org/categories.md) **Page:** 4 --- ## [Who is driving dns-prefetch adoption?](https://discuss.httparchive.org/t/who-is-driving-dns-prefetch-adoption/2263)
**Author:** [@rviscomi](https://discuss.httparchive.org/u/rviscomi)\ **Replies:** 3\ **Last updated:** [November 12, 2021, 8:21am UTC](https://discuss.httparchive.org/t/who-is-driving-dns-prefetch-adoption/2263 "2021-11-12T08:21:17Z")
Posing a challenge to all the data analysts in the room :cowboy\_hat\_face: In the 2021 Resource Hints chapter of the Web Almanac (coming soon!) author @imkevdev says: The most widely used resource hint is dns-prefetch … --- ## [Growth of the Web in 2020](https://discuss.httparchive.org/t/growth-of-the-web-in-2020/2029)
**Author:** [@paulcalvano](https://discuss.httparchive.org/u/paulcalvano)\ **Replies:** 0\ **Last updated:** [September 29, 2020, 6:38pm UTC](https://discuss.httparchive.org/t/growth-of-the-web-in-2020/2029 "2020-09-29T18:38:35Z")
In a blog post on paulcalvano.com, I shared some insights into the growth of the web, as measured by an increase in the number of origins in the Chrome User Experience Report. This post shares the SQL queries and data I … --- ## [Recent Alexa Ranks](https://discuss.httparchive.org/t/recent-alexa-ranks/2169)
**Author:** [@Lauren2909](https://discuss.httparchive.org/u/Lauren2909)\ **Replies:** 4\ **Last updated:** [June 22, 2021, 8:14am UTC](https://discuss.httparchive.org/t/recent-alexa-ranks/2169 "2021-06-22T08:14:57Z")
Is there any way to access/pay to access more up to date Alexa rankings on the HTTP Archive/ Google Query tables? Under the “URL” table, the Alexa domains and rankings are provided for up to 2017. Thanks! --- ## [Is there an explanation of the columns](https://discuss.httparchive.org/t/is-there-an-explanation-of-the-columns/2231)
**Author:** [@nstringham](https://discuss.httparchive.org/u/nstringham)\ **Replies:** 8\ **Last updated:** [October 19, 2021, 7:56pm UTC](https://discuss.httparchive.org/t/is-there-an-explanation-of-the-columns/2231 "2021-10-19T19:56:41Z")
I am going through httparchive.summary\_pages.2021\_09\_01\_mobile in BigQuery preview and I don’t know what some of the columns mean. Is there documentation somewhere that describes each column? --- ## [Lighthouse scores as predictors of page-level CrUX data](https://discuss.httparchive.org/t/lighthouse-scores-as-predictors-of-page-level-crux-data/2232)
**Author:** [@brendankenny](https://discuss.httparchive.org/u/brendankenny)\ **Replies:** 2\ **Last updated:** [October 15, 2021, 9:18pm UTC](https://discuss.httparchive.org/t/lighthouse-scores-as-predictors-of-page-level-crux-data/2232 "2021-10-15T21:18:40Z")
Inspired by Rick’s earlier thread “Correlating Lighthouse scores to page-level CrUX data”, I started looking at the question of how to evaluate the Lighthouse score as a predictor of field data. As discussed in that thre… --- ## [Technology detection - Core Web Vitals Technology Report](https://discuss.httparchive.org/t/technology-detection-core-web-vitals-technology-report/2242)
**Author:** [@slvzbvc](https://discuss.httparchive.org/u/slvzbvc)\ **Replies:** 1\ **Last updated:** [October 13, 2021, 12:47pm UTC](https://discuss.httparchive.org/t/technology-detection-core-web-vitals-technology-report/2242 "2021-10-13T12:47:08Z")
Hi, I cannot find an answer, so I am writing here. I represent the Shoper platform, I am wondering how to make your report aware of the larger scale of shops of our solution. Currently I see literally a dozen or so and… --- ## [Alexa Rank for each url](https://discuss.httparchive.org/t/alexa-rank-for-each-url/1850)
**Author:** [@yajavu](https://discuss.httparchive.org/u/yajavu)\ **Replies:** 1\ **Last updated:** [January 27, 2020, 8:24pm UTC](https://discuss.httparchive.org/t/alexa-rank-for-each-url/1850 "2020-01-27T20:24:22Z")
Hi everybody, Httparchive now use the urls from Google CrUX. But there is not any global ranking in their data source. I think, Alexa ranking is still a very important data source. Shouldn’t we add the ranking info to e… --- ## [How to check the speed of the website page?](https://discuss.httparchive.org/t/how-to-check-the-speed-of-the-website-page/956)
**Author:** [@alishahessle](https://discuss.httparchive.org/u/alishahessle)\ **Replies:** 17\ **Last updated:** [July 7, 2021, 8:34am UTC](https://discuss.httparchive.org/t/how-to-check-the-speed-of-the-website-page/956 "2021-07-07T08:34:52Z")
Hello, I am running a website and I need to know how can I check the website's page speed and what are the measure should I take to increase it... --- ## [CDN consumption in India](https://discuss.httparchive.org/t/cdn-consumption-in-india/1736)
**Author:** [@saibalaji](https://discuss.httparchive.org/u/saibalaji)\ **Replies:** 0\ **Last updated:** [September 21, 2019, 11:29am UTC](https://discuss.httparchive.org/t/cdn-consumption-in-india/1736 "2019-09-21T11:29:56Z")
Amazon.in seems to use Akamai as one of its CDNs. Is that true? If so what’s their multi-CDN story? Digging into the CruX data and running the following simple query tells us that amazon.in has indeed been using multip… --- ## [Chapter 3. Markup](https://discuss.httparchive.org/t/chapter-3-markup/2039)
**Author:** [@rviscomi](https://discuss.httparchive.org/u/rviscomi)\ **Replies:** 5\ **Last updated:** [January 31, 2021, 11:02pm UTC](https://discuss.httparchive.org/t/chapter-3-markup/2039 "2021-01-31T23:02:51Z")
Tell us what you think! We’d love to hear your feedback on the Markup chapter of the 2020 Web Almanac. Leave a comment and tell us your questions, comments, and ideas. poll Chapter resources :nerd\_face: Here are some a… --- ## [Chapter 1. CSS](https://discuss.httparchive.org/t/chapter-1-css/2037)
**Author:** [@rviscomi](https://discuss.httparchive.org/u/rviscomi)\ **Replies:** 2\ **Last updated:** [December 15, 2020, 10:20am UTC](https://discuss.httparchive.org/t/chapter-1-css/2037 "2020-12-15T10:20:10Z")
Tell us what you think! We’d love to hear your feedback on the CSS chapter of the 2020 Web Almanac. Leave a comment and tell us your questions, comments, and ideas. poll Chapter resources :nerd\_face: Here are some addi… --- ## [DNS Server Not-Responding Issue](https://discuss.httparchive.org/t/dns-server-not-responding-issue/2185)
**Author:** [@Michaellanglais](https://discuss.httparchive.org/u/Michaellanglais)\ **Replies:** 3\ **Last updated:** [June 29, 2021, 9:31am UTC](https://discuss.httparchive.org/t/dns-server-not-responding-issue/2185 "2021-06-29T09:31:28Z")
Hello friends. I have not been able to solve a computer’s internet problem for the last 2 days, that is, every time I try to connect the Internet to my computer, the DNS server not responding, the error is showing. I am … --- ## [Does BigQuery contain HAR Archive or cookies of crawled webpages?](https://discuss.httparchive.org/t/does-bigquery-contain-har-archive-or-cookies-of-crawled-webpages/1968)
**Author:** [@\_nurullah](https://discuss.httparchive.org/u/_nurullah)\ **Replies:** 13\ **Last updated:** [June 11, 2021, 6:17pm UTC](https://discuss.httparchive.org/t/does-bigquery-contain-har-archive-or-cookies-of-crawled-webpages/1968 "2021-06-11T18:17:32Z")
Hi, Do we have also HAR Archive of crawled websites or stored cookies while crawling? I didn’t find any table or column in BigQuery. Am I missing something or don’t we have such data? Bests, Nurullah --- ## [Detecting the FLoC opt-out HTTP Header](https://discuss.httparchive.org/t/detecting-the-floc-opt-out-http-header/2140)
**Author:** [@Nooshu](https://discuss.httparchive.org/u/Nooshu)\ **Replies:** 4\ **Last updated:** [June 9, 2021, 10:05pm UTC](https://discuss.httparchive.org/t/detecting-the-floc-opt-out-http-header/2140 "2021-06-09T22:05:52Z")
Federated Learning of Cohorts (FLoC) is a new technology that exists in versions of Chrome 89+. Its purpose is to assign Chrome users to groups (or cohorts), depending on their browser history. These cohorts can be used … --- ## [Analyzing Largest Contentful Paint stats via Lighthouse audits](https://discuss.httparchive.org/t/analyzing-largest-contentful-paint-stats-via-lighthouse-audits/2166)
**Author:** [@paulcalvano](https://discuss.httparchive.org/u/paulcalvano)\ **Replies:** 0\ **Last updated:** [June 8, 2021, 3:39am UTC](https://discuss.httparchive.org/t/analyzing-largest-contentful-paint-stats-via-lighthouse-audits/2166 "2021-06-08T03:39:36Z")
In a blog post, I shared some insights into the Largest Contentful Paint metric using data from Lighthouse audits. This post shares the SQL queries and data I used to prepare that article. Extracting LCP Details from th… --- ## [Chapter 7. SEO](https://discuss.httparchive.org/t/chapter-7-seo/2043)
**Author:** [@rviscomi](https://discuss.httparchive.org/u/rviscomi)\ **Replies:** 0\ **Last updated:** [October 25, 2020, 11:15pm UTC](https://discuss.httparchive.org/t/chapter-7-seo/2043 "2020-10-25T23:15:18Z")
Tell us what you think! We’d love to hear your feedback on the SEO chapter of the 2020 Web Almanac. Leave a comment and tell us your questions, comments, and ideas. poll Chapter resources :nerd\_face: Here are some addi… --- ## [How prevalent are empty custom properties in CSS?](https://discuss.httparchive.org/t/how-prevalent-are-empty-custom-properties-in-css/2153)
**Author:** [@rviscomi](https://discuss.httparchive.org/u/rviscomi)\ **Replies:** 2\ **Last updated:** [June 4, 2021, 4:13pm UTC](https://discuss.httparchive.org/t/how-prevalent-are-empty-custom-properties-in-css/2153 "2021-06-04T16:13:20Z")
The CSS Working Group is looking into usage of empty custom properties in the wild and the HTTP Archive dataset would be perfect. We have August 2020 data in the almanac.parsed\_css table but it’d be better to have more … --- ## [Announcing the new HTTP Archive!](https://discuss.httparchive.org/t/announcing-the-new-http-archive/1294)
**Author:** [@rviscomi](https://discuss.httparchive.org/u/rviscomi)\ **Replies:** 3\ **Last updated:** [April 4, 2018, 5:51pm UTC](https://discuss.httparchive.org/t/announcing-the-new-http-archive/1294 "2018-04-04T17:51:57Z")
Today we’re excited to be graduating the website formerly known as “HTTP Archive Beta” to the new default HTTP Archive web experience! :champagne: \[image\] You may remember back in October 2017 when we announced the lau… --- ## [Tracking WebP adoption and impact, especially in WordPress](https://discuss.httparchive.org/t/tracking-webp-adoption-and-impact-especially-in-wordpress/2150)
**Author:** [@adamsilverstein](https://discuss.httparchive.org/u/adamsilverstein)\ **Replies:** 5\ **Last updated:** [May 19, 2021, 2:41am UTC](https://discuss.httparchive.org/t/tracking-webp-adoption-and-impact-especially-in-wordpress/2150 "2021-05-19T02:41:56Z")
Hi! I recently helped land WebP support in WordPress (Changeset 50810 – WordPress Trac) and would like to start tracking adoption of WebP images. Mainly I want to track: How many WordPress (\>= version 5.8.0) sites us… --- ## [Chapter 8. Security](https://discuss.httparchive.org/t/chapter-8-security/1763)
**Author:** [@rviscomi](https://discuss.httparchive.org/u/rviscomi)\ **Replies:** 9\ **Last updated:** [May 13, 2021, 5:42pm UTC](https://discuss.httparchive.org/t/chapter-8-security/1763 "2021-05-13T17:42:11Z")
Share your questions, comments, and ideas about the Security chapter of the Web Almanac… --- ## [Determine if a request download time is fast?](https://discuss.httparchive.org/t/determine-if-a-request-download-time-is-fast/2136)
**Author:** [@timbednar](https://discuss.httparchive.org/u/timbednar)\ **Replies:** 1\ **Last updated:** [May 4, 2021, 3:14am UTC](https://discuss.httparchive.org/t/determine-if-a-request-download-time-is-fast/2136 "2021-05-04T03:14:14Z")
I have a 11k image being preloaded in my head as it’s the featured blog image. I see it as a cache HIT in Cloudflare, and TTFB is 568ms and Content Download is 108ms for a total of 712ms. This seems slow to me. But I hav… --- ## [Finding out what's in the \?](https://discuss.httparchive.org/t/finding-out-whats-in-the-head/2119)
**Author:** [@Nathaniel](https://discuss.httparchive.org/u/Nathaniel)\ **Replies:** 1\ **Last updated:** [April 20, 2021, 8:27pm UTC](https://discuss.httparchive.org/t/finding-out-whats-in-the-head/2119 "2021-04-20T20:27:13Z")
Hello I’m new. Recently I started making a website with a strict page weight of 30kB. One page was over budget, so I started looking for things I could safely remove from the page. I was delighted to find out from the a… --- ## [Segmenting HTTP Archive results by rank with CrUX](https://discuss.httparchive.org/t/segmenting-http-archive-results-by-rank-with-crux/2135)
**Author:** [@rviscomi](https://discuss.httparchive.org/u/rviscomi)\ **Replies:** 1\ **Last updated:** [April 20, 2021, 5:47pm UTC](https://discuss.httparchive.org/t/segmenting-http-archive-results-by-rank-with-crux/2135 "2021-04-20T17:47:19Z")
Since we’ve moved away from an Alexa-based dataset, the Chrome UX Report (CrUX) has been lacking comparable ranking information to help segment the results by popularity. However, CrUX now supports coarse rank magnitude … --- ## [Cannot find blink feature in the blink\_features.usage table](https://discuss.httparchive.org/t/cannot-find-blink-feature-in-the-blink-features-usage-table/2132)
**Author:** [@shuranh](https://discuss.httparchive.org/u/shuranh)\ **Replies:** 9\ **Last updated:** [April 20, 2021, 4:13pm UTC](https://discuss.httparchive.org/t/cannot-find-blink-feature-in-the-blink-features-usage-table/2132 "2021-04-20T16:13:33Z")
Hi, I added a blink features to be tracked via UseCounters in Chromium a few months ago, and there is usage data in Chrome Status pages (0.6%): CrossBrowsingContextGroupMainFrameNulledNonEmptyNameAccessed. However, the … --- ## [Do results include lazy loaded images?](https://discuss.httparchive.org/t/do-results-include-lazy-loaded-images/2129)
**Author:** [@pemoze](https://discuss.httparchive.org/u/pemoze)\ **Replies:** 3\ **Last updated:** [April 6, 2021, 2:34pm UTC](https://discuss.httparchive.org/t/do-results-include-lazy-loaded-images/2129 "2021-04-06T14:34:32Z")
Hi http-archive team! I read in your FAQ that you test the webpages on your private instance of WebPageTest. Then I tried out the public webpagetest tool with some pages of which I know that they use lazy loading on ima… --- ## [Desktop version har files before 2015](https://discuss.httparchive.org/t/desktop-version-har-files-before-2015/2128)
**Author:** [@YN-Zheng](https://discuss.httparchive.org/u/YN-Zheng)\ **Replies:** 2\ **Last updated:** [April 5, 2021, 12:39pm UTC](https://discuss.httparchive.org/t/desktop-version-har-files-before-2015/2128 "2021-04-05T12:39:18Z")
Hi! I’m doing longitudinal research based on the har files provided by HttpArhive. So far I’ve analysis the har files from chrome-Oct\_15\_2015 till the latest date. I also find that there is an earlier IE version desktop… --- ## [Tracking page weight over time – UPDATE?](https://discuss.httparchive.org/t/tracking-page-weight-over-time-update/2110)
**Author:** [@pemoze](https://discuss.httparchive.org/u/pemoze)\ **Replies:** 6\ **Last updated:** [March 12, 2021, 7:35am UTC](https://discuss.httparchive.org/t/tracking-page-weight-over-time-update/2110 "2021-03-12T07:35:24Z")
Hi there! I found this very interesting article: https://discuss.httparchive.org/t/tracking-page-weight-over-time/1049 Since it was written in 2017, it is not quite actual. I am currently doing research for my Master T… --- ## [Tracking Page Weight Over Time](https://discuss.httparchive.org/t/tracking-page-weight-over-time/1049)
**Author:** [@paulcalvano](https://discuss.httparchive.org/u/paulcalvano)\ **Replies:** 3\ **Last updated:** [March 3, 2021, 3:36pm UTC](https://discuss.httparchive.org/t/tracking-page-weight-over-time/1049 "2021-03-03T15:36:50Z")
As of July 2017, the “average” page weight is 3MB. @Tammy wrote an excellent blog post about HTTP Archive page stats and trends. Last year @igrigorik published an analysis on page weight using CDF plots. And of cour… --- ## [Finding sites that report layout shifts before content is displayed](https://discuss.httparchive.org/t/finding-sites-that-report-layout-shifts-before-content-is-displayed/2112)
**Author:** [@patmeenan](https://discuss.httparchive.org/u/patmeenan)\ **Replies:** 2\ **Last updated:** [February 27, 2021, 10:12pm UTC](https://discuss.httparchive.org/t/finding-sites-that-report-layout-shifts-before-content-is-displayed/2112 "2021-02-27T22:12:25Z")
WebPageTest added a counter for the number of layout shifts that happened before FCP (when there was no visible content to actually shift). This will extract the URLs for pages as well as the timing of the first shift r… --- ## [Chapter 22. HTTP/2](https://discuss.httparchive.org/t/chapter-22-http-2/2058)
**Author:** [@rviscomi](https://discuss.httparchive.org/u/rviscomi)\ **Replies:** 0\ **Last updated:** [October 25, 2020, 11:28pm UTC](https://discuss.httparchive.org/t/chapter-22-http-2/2058 "2020-10-25T23:28:50Z")
Tell us what you think! We’d love to hear your feedback on the HTTP/2 chapter of the 2020 Web Almanac. Leave a comment and tell us your questions, comments, and ideas. poll Chapter resources :nerd\_face: Here are some a… [Previous page](https://discuss.httparchive.org/latest.md?page=2) [Next page](https://discuss.httparchive.org/latest.md?page=4)