Below are two graphs plotting the number of images on a page against the total KB transferred by Chrome 13 for both a page with JSIO and without JSIO (which I, for some reason have called a “plain” page).
I build websites for a living, so I have a lot of folders of images from various websites lying around which form the two data sets for the graphs. I’d like to think of them as a typical set of website images, but you may argue that they are typical for the websites that I build.
I knocked up a script that when given a folder of images, will output a “plain” HTML page, a JSIO HTML page and a JSIO resources file with the following numbers of images on them: 2, 4, 6, 8, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000 and 1100. Before generating any of the pages, the order of the images were randomised to better represent a web page’s inclusion of different images for different purposes.
Chrome 13 was used with the developer toolbar to determine how many requests were being made and the actual KB transferred (with slight rounding errors) by the browser. In my opinion I would say that Apache was set up to serve image and javascript content typical of many servers on the internet in that images were not gzipped but javascript files were; the register, bbc, for example.
What is interesting to note is that the number of bytes transferred by JSIO are consistently lower than the bytes transferred by a plain HTML page…but not by a lot. The file size inflation due to base64 encoding seems to cancel out a lot of bytes the gained from making fewer requests. However, it is obvious that JSIO won’t actually lose you any bytes, but it isn’t going to save you a substantial amount. That said, saving bytes isn’t the only benefit of JSIO, remember that one of JSIO’s goals is also to alleviate some of the problems surrounding the creation and use of image sprites – which it does also do very well.
The graph below is just for fun, it plots the number of requests made by JSIO pages against the number of requests made by plain HTML pages. Note the JSIO pages make a constant 4 requests (index.html, jsio.js, jsio-resources.js and jsio.gif) independent of how many images are on the page:
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Closed the tab and immediately reopened it ten minutes later because I wanted to reread a part, and a stop at creativecommercecollective drew the same return, content that pulls you back after closing it is doing something well beyond the average and worth marking as exceptional in my mental catalogue of reliable sites.
Thanks for the practical examples scattered through the post rather than abstract theory only and a look at compassbulb continued that grounded style abstract points are easier to remember when paired with concrete situations and the writers here clearly understand how readers actually retain information from blog content reading sessions.
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Good quality through and through, no rough edges and no signs of being rushed, and a quick look at goldenpeakharbor kept the same polish going, the kind of site that respects its own brand by maintaining consistency across pages which is something I always appreciate as a reader looking for trustworthy information online today.
Looking at the surface design and the substance together this site has both right, and a look at everydaypremiumessentials reinforced that integrated quality, sites where presentation and content reinforce each other rather than fighting are sites with full editorial coherence and this one has clearly invested in both layers in a balanced way.
Top quality material, deserves more attention than it probably gets, and a look at silkvendor reflected the same effort across the site, a hidden gem in the modern web where most attention goes to whoever shouts loudest rather than whoever actually delivers the best content for their readers without much marketing fanfare.
Reading this triggered a small change in how I think about the topic going forward, and a stop at larkvendor reinforced that subtle shift, the rare content that actually moves my thinking rather than just confirming or filling it is the kind I most value and this site is providing that kind of impact today.
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Honestly impressed by the consistency of voice across what I have read so far, and a quick visit to islemeadows continued that consistent feel, when a site reads like one careful person rather than a committee the experience is more rewarding for the reader who notices these subtle editorial details over time.
Now adjusting my mental model of how the topic fits into the broader landscape, and a look at auralcleat extended that adjustment, content that affects my structural understanding rather than just my factual knowledge is content with deeper impact and this site is providing those structural updates at a meaningful rate consistently across topics.
Generally I bookmark sparingly to avoid building up a bookmark graveyard but this one earned a permanent slot, and a stop at berylcalm extended that permanence designation, the few sites I keep permanent bookmarks for are sites I expect to use repeatedly and this one has clearly cleared that expectation bar today.
Worth saying that this is one of the better things I have read on the topic in months and a stop at valuewhisper reinforced that ranking the topic is well covered by many sources but few do it with this level of care and the few that do deserve to be flagged so other readers can find them.
The post made the topic feel approachable without making it feel trivial, that is a fine balance, and a stop at spikeisland2020 maintained the same balance, finding the middle ground between welcoming and serious is genuinely difficult and the writers here have clearly figured out how to consistently hit it well across many different posts.
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The clarity here is something I really appreciate, especially compared to sites that pile on jargon for no reason, and a look at slowcraftedlifestyle was the same, simple direct sentences that actually deliver information instead of dancing around the point for paragraphs at a time which wastes reader patience.
Felt the post was written for someone like me without explicitly addressing me, and a look at intentionalmarketplacehub produced the same fit, when content lands on its target without pandering you know the writer has done careful audience thinking rather than relying on demographic targeting or interest signals to do the work of editorial decisions.
Now appreciating that the post left me with enough to say in a follow up conversation, and a look at boundcoil added more material for those follow ups, content that prepares me for related conversations rather than just informing me alone is content with social utility and this site provides that social armament reliably for me.
Strong recommendation from me, anyone curious about the topic should make time for this, and a look at softleafmarket only sharpens that recommendation further, the kind of resource that holds up against careful scrutiny rather than crumbling at the first critical question is rare and worth pointing other people toward when the topic comes up.
Appreciated the way each section connected smoothly to the next without abrupt jumps, and a stop at ardenburst kept that flow going nicely, transitions are something most blog writers ignore but the difference is huge for the reader who is trying to follow a sustained line of thought today across many different topics.
Now realising this site has been quietly doing good work for longer than I knew, and a look at crocboard suggested an archive worth exploring, sites with deep archives of consistent quality represent a different kind of resource than sites with viral hits and this one looks like the durable kind based on what I see.
Thanks for laying this out in a way that someone newer to the topic can follow, and a stop at ethicalglobalmarket kept that accessibility going, writing that meets readers at different experience levels without condescending is hard to do well and the writers here have clearly thought about who they are writing for.
Such writing is increasingly rare and worth supporting through attention, and a stop at thoughtfullyselectedproducts extended that supportive attention across more pages, the conscious choice to spend time on sites that produce careful work rather than convenient consumption is itself a small form of patronage and this site is receiving that conscious patronage from me.
A piece that prompted a small mental rearrangement of how I order related ideas, and a look at noblepinecrafts extended that rearranging effect, content that affects the structure of my thinking rather than just adding to it is content with the deepest kind of impact and this site is reaching that depth for me today.
Walked away with a clearer head than I had before reading this, and a quick visit to contemporarylivingstore only sharpened that, the writing has a way of cutting through the noise that surrounds most topics online which is something I will definitely remember the next time I am searching for an answer to anything.
Granted my mood today might be elevating my reading experience but I still think this is genuinely good, and a stop at zestvendor reinforced that even discounted assessment, controlling for the mood adjustment that affects content perception this site still reads as substantively above average across multiple pieces I have read carefully today.
Honestly impressed by how much useful content sits in such a small post, and a stop at trueautumnmarket confirmed the rest of the site packs a similar punch, density without confusion is a hard balance to strike and this site has clearly cracked the code on it across many different topic areas covered.
Honestly enjoyed not being sold anything for the entire duration of the post and a look at mistmarket kept that pleasant absence going across more pages content that exists for its own sake rather than as a funnel to a paid product is increasingly rare and worth supporting where I can find it.
High quality writing, no marketing speak and no buzzwords that mean nothing, and a stop at civiccask kept that going, simple direct content that actually communicates something is harder to find than it should be and this is one of the rare places that gets it right consistently across many different posts.
Picked up on several small touches that suggest a careful editor and a look at compasscabin suggested the same hand at work across the broader site editorial consistency at a granular level is one of the strongest signs that an operation is serious rather than just hobbyist and this site reads as serious throughout.
Reading this in the gap between work projects was a small but meaningful break, and a stop at saucierstudio extended that gentle reset, content that provides genuine refreshment rather than just distraction during work breaks is content with a particular kind of utility and this site fits that role for me reliably during work days.
Reading carefully this time rather than scanning, and the depth shows up in places I missed first time around, and a look at blazeclose rewarded the same careful approach, content that holds up to multiple reads is content I want more of in my regular rotation rather than disposable scroll fodder daily.
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Felt like the post had been edited rather than just drafted and published, and a stop at intentionalclickpingcollective suggested the same care across the site, the difference between edited and unedited content is enormous for the reader and this site has clearly invested in the editing pass that most blogs skip entirely which really does show up.
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Liked that the post acknowledged complications rather than pretending they did not exist, and a stop at consciousconsumerhub continued that honest framing, sites that handle complexity with care rather than papering it over with simplifying claims are doing real intellectual work and this one is clearly in that category based on what I have read.
Reading this on a difficult day was a small bright spot, and a stop at ariabee extended that brightness, content that improves a hard day is content that has earned a particular kind of place in my reading habits and this site is occupying that uplifting role for me today which I appreciate clearly.
Probably the best thing I have read on this topic in the past month, and a stop at balticarrow extended that ranking, the casual ranking of recent reading is informal but real and this site has been winning those rankings for me on this topic specifically over the last several weeks of regular reading sessions.
Just want to flag that this was useful and not bury the appreciation in caveats, and a look at croccocoa earned the same direct praise, recognising good work without hedging it with criticism is something I try to practice because over qualified compliments tend to read as backhanded and miss the point sometimes.
Glad to have another data point on a question I am still thinking through, and a look at artfulhomeessentials added two more, content that acknowledges its place in a wider conversation rather than pretending to settle the question alone is intellectually honest in a way that I wish was more common across the open web.
If you scroll past this site without looking carefully you will miss something, and a stop at urbanfieldgallery extended that mild warning, the surface of the site does not advertise its quality loudly which means careful attention is required to recognise what is being offered here which is itself a kind of editorial signal.
Just want to acknowledge that the writing here is doing something right, and a quick visit to timberlineattic confirmed the same standards run across the broader site, recognising good work is something I try to do when I find it because the alternative is silence and silence rewards mediocrity.
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Now wishing more sites covered topics with this level of care, and a look at bowbotany extended that wish across more subjects, the rarity of careful coverage on most topics is a problem and this site is one of the small antidotes to that broader pattern of casual or surface treatment of complex subjects.
Picked up a couple of new ideas here that I can actually try out, and after my visit to myvetcoach I have even more notes saved, this is the kind of resource that pays you back for the time you spend on it which is rare to come across in this corner of the web.
Liked the careful selection of which details to include and which to skip, and a stop at timelessdesignsandgoods reflected the same editorial judgement, knowing what to leave out is just as important as knowing what to include and this site has clearly figured out where that line sits for the topics it covers regularly.
Really appreciate the absence of stock photos that have nothing to do with the content and a quick visit to vaultbasket maintained the same restraint visual filler is a tell that the writing cannot stand on its own and the lack of it here suggests the team has confidence in their content quality alone.
Now thinking about how to apply some of this to a project I have been planning, and a look at upvendor added more material for the planning, content that connects to my actual creative work rather than just being interesting in the abstract is the kind that earns priority placement in my reading rotation consistently going forward.
A piece that suggested careful editing without showing the marks of the editing, and a look at thoughtfulclickpingplatform continued that invisible polish, the best editing disappears into the prose and this site reads as having been edited with skill that does not announce itself which is the highest compliment I can offer any blog content.