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:



Great work on keeping things readable, the post never drags or repeats itself which I really appreciate, and a stop at ultrashophub added a bit more context that fit naturally with what was already said here, no need to read everything twice to get the point being made today.
Refreshing to find writing that does not try to manipulate the reader into clicking onto the next page through cliffhangers and forced engagement, and a stop at xarvilo continued in the same respectful way, this is what reader first design actually looks like in practice rather than just in marketing copy that sounds nice.
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Pass this along to colleagues if the topic comes up, the framing here is sensible, and a stop at fibergrid adds more useful angles to share, the kind of content that improves conversations rather than just feeding them is what makes a resource genuinely valuable in professional contexts going forward over time and across project boundaries too.
Now I want to find more sites like this but I suspect they are rare, and a look at shopzaro extended that thought, the few sites that meet this quality bar are precious specifically because they are rare and finding others like them is one of the ongoing projects of careful internet curation across the years.
Reading this prompted me to dig into a related topic later, and a stop at gemglobe provided some of the starting points for that follow up reading, content that triggers further exploration rather than satisfying curiosity completely is content with real generative energy and this site has plenty of that energy throughout it.
Honestly thank you to whoever wrote this because it scratched an itch I had not quite been able to articulate, and a stop at morxavi kept that satisfying feeling going, the kind of writing that meets unspoken needs is special and this site clearly has writers who understand their readers more than most do today.
Now adding this to a list of sites I want to see flourish, and a stop at musebeats reinforced that wish, the few sites I actively root for are sites that produce the kind of work I want more of in the world and this one has joined that small list based on what I have read so far.
Following a few of the internal links revealed more posts of similar quality, and a stop at havenfoam added more to that growing pile, sites where internal links lead to more good content rather than to more of the same recycled material are sites with depth and this one has clearly built that depth carefully.
Quality writing that respects the reader’s intelligence without overloading them, and a quick look at hickorygrid reflected that approach, a balanced thoughtful site that earns trust by being consistent rather than by shouting about how trustworthy it is which is the usual approach online sadly across most content categories.
Liked how the writer used real examples instead of theoretical ones to make the points stick, and a stop at qelmizo added even more concrete examples, this is the kind of practical approach that respects readers who actually want to apply what they learn rather than just nodding along passively without doing anything useful.
Worth recognising the absence of the usual blog tropes here and a look at jadeflax continued that fresh quality sites that avoid the standard moves of the medium read as more original even when the content is on familiar topics and this one has clearly chosen its own path through the conventional terrain skilfully.
Now planning to come back when I have the right kind of attention to read carefully, and a stop at eastglaze reinforced that plan, choosing the right moment to read certain content is a quiet form of respect for the work and this site is generating those careful planning behaviours from me consistently as a reader.
Thanks for treating the topic with the seriousness it deserves without becoming pompous about it, and a stop at northvendor continued that balanced treatment, the gap between earnest and self serious is huge and writers who can stay on the right side of it earn my respect when I find them online today.
Honest assessment is that this is one of the better short reads I have had this week, and a look at luxmixo reinforced that, the bar for short content is low because most of it sacrifices substance for brevity but this site manages both at once which is harder than it sounds for most writers attempting it.
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Reading this in pieces during a long afternoon and finding it consistently rewarding, and a stop at pactpalace fit naturally into the same fragmented reading pattern, sites whose posts can be read in segments without losing the thread are well suited to how I actually read these days and this one is built well.
Bookmark folder created specifically for this site, and a look at tirxavo confirmed the dedicated folder was the right call, dedicated folders for individual sites are a level of organisation I rarely deploy and this site has earned that level of dedicated tracking based on the consistency I have seen so far across sessions.
Comfortable read, finished it without realising how much time had passed, and a look at urbanvo pulled me into more pages the same way, the absence of friction in good content lets time disappear and that is one of the highest compliments I can pay any piece of writing I find online during a regular search session.
Reading this in the morning set a good tone for the day, and a quick visit to cartluma kept that good tone going, content can do that sometimes when it hits the right notes and finding sites that consistently strike that tone is something I have learned to recognise and reward with regular visits.
Thanks for the moderate length, neither so short it skips substance nor so long it bloats, and a stop at brightfuturedeals hit the same balance, the right length is one of the hardest things to calibrate in blog writing and I appreciate when a team has clearly thought about it rather than defaulting.
Coming back tomorrow when I can give this a proper read, the post deserves better attention than I can give right now, and a look at discoverfashionhub suggests there is plenty more here that deserves the same treatment, definitely a site I will be exploring properly over the next few days when I can.
Reading this confirmed a small detail I had been uncertain about, and a stop at xavlumo provided the source for further checking, content that supports verification through citations or links rather than just asserting facts is more trustworthy and this site has clearly built its credibility through that kind of verifiable approach consistently.
Coming back to this one, definitely, and a quick visit to fortfalcon only made me more sure of that, the kind of writing that makes you want to set aside time later rather than rushing through it now while distracted by everything else competing for attention on the screen today across so many tabs.
A piece that did not require external context to follow, and a look at zenvani maintained the same self contained quality, content that stands alone without forcing readers to chase prerequisites is more accessible and this site has clearly thought about how each piece can serve a fresh visitor rather than only existing members.
Most attempts at writing on this topic feel like they are missing something and this post finally identified what was missing, and a look at mivqaro extended that diagnostic clarity, content that names what is wrong with adjacent treatments while doing better itself is content with both critical and constructive value and this site has both.
Looking at this objectively the editorial quality is hard to deny even setting aside personal taste, and a stop at liegepenny maintained the same objective quality, the gap between what I personally enjoy and what is objectively well crafted exists and this site clears both bars simultaneously which is rarer than it sounds.
Speaking as someone who used to recommend blogs frequently and got out of the habit this site is rekindling that impulse, and a look at wattedge extended the rekindling, the recovery of an old habit triggered by encountering work that justifies it is itself a small kind of pleasure and this site is providing that recovery experience.
Bookmark moved to my permanent reference folder rather than the casual maybe later folder, and a look at premiumdesigncollective earned the same upgrade, the distinction between casual interest and lasting reference is something I track carefully and very few sites cross that threshold but this one did so without much effort apparently.
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Probably worth setting aside a longer block to read more carefully than I can right now, and a stop at genieframe confirmed the longer block plan, the impulse to schedule dedicated time for a sites archive is itself a measure of trust and this site has earned that scheduling impulse from me clearly today actually.
Worth pointing out that the writer made the topic feel more interesting than I had been expecting, and a look at ygavexaudition2024 continued that elevation effect, content that improves the apparent quality of its subject through skilled treatment is doing something real and this site has clearly developed that kind of editorial alchemy throughout.
Pass this along to colleagues if the topic comes up, the framing here is sensible, and a stop at hazegloss adds more useful angles to share, the kind of content that improves conversations rather than just feeding them is what makes a resource genuinely valuable in professional contexts going forward over time and across project boundaries too.
Started reading without much expectation and ended on a high note, and a look at windyforestfinds continued that arc, content that builds rather than peaks early is a sign of a writer who knows how to structure a piece for sustained reader engagement rather than relying on a strong hook to do all the work.
Worth pointing out the careful word choice in this post, no buzzwords and no jargon, and a look at styleluma continued that disciplined vocabulary, sites that resist the pull of trendy language are sites that will read well in five years and this one is clearly built for that kind of long durability.
Reading this brought back an idea I had set aside months ago and a stop at jetfrost added more substance to that idea content that revives dormant projects in my own thinking is content with serious creative value and this site is contributing to my own work in ways I had not expected when first clicking through.
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Coming back tomorrow when I can give this a proper read, the post deserves better attention than I can give right now, and a look at hiltgable suggests there is plenty more here that deserves the same treatment, definitely a site I will be exploring properly over the next few days when I can.
Honest opinion is that this is the kind of post that builds long term trust with readers and a look at julyelm reinforced that perception the slow accumulation of trust through consistent quality is the only sustainable way to build a real audience and this site is clearly playing that long game.
A clear cut above the usual noise on the subject, and a look at luxrivo only made that gap wider in my view, the kind of place that earns its visitors through quality rather than through aggressive marketing or sponsored placements which is increasingly the only way most sites stay afloat across the modern web.
Genuine reaction is that this site clicked with how I like to read, and a look at ivoryvendor kept that comfortable fit going, sometimes you find a place online whose editorial decisions just align with your preferences and when that happens it is worth recognising and supporting through repeat engagement consistently going forward.
Worth every minute of the time spent reading, and a stop at oakarenas extends that value across more pages, in a media environment where most content is engineered to waste attention this site stands out by treating reader time as something valuable rather than something to be exploited and stretched as far as possible.
Stands apart from similar pages by actually being useful, that is high praise these days, and a look at urbanzaro kept that standard going, you can tell when a site is built around the reader versus around metrics and this one clearly belongs to the first category for sure based on what I read.
Honestly the simplicity is what makes this work, the topic is not buried under filler words or overly complex examples, and a quick look at lullneon showed the same sensible style, I left with what I came for and no headache from over reading which is a real win these days.
Reading this triggered a small change in how I think about the topic going forward, and a stop at cartmixo 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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Reading this confirmed a hunch I had been carrying about the topic without having articulated it, and a stop at seovista extended the confirmation, content that gives shape to fuzzy intuitions is doing the rare work of making private thoughts public and this site is providing that articulating service consistently for me lately.
Considered as a whole this site has developed a coherent point of view that comes through in individual pieces, and a look at discovermoreoffers continued displaying that coherence, sites with a unified perspective rather than a grab bag of takes are sites with editorial maturity and this one has clearly developed that maturity through years of work.
Reading this slowly to give it the attention it deserved, and a stop at zenvaxo earned the same slow read, choosing to read slowly is a small act of respect for content quality and very few sites earn that respect from me but this one did so without any explicit ask which is the cleanest way.
Liked that the post left some questions open rather than pretending to settle everything, and a stop at plumvendor continued that intellectual honesty, content that respects the limits of its own claims is more trustworthy than content that overreaches and this site has clearly figured out which positions it can defend confidently.