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:
Pass this along to colleagues if the topic comes up, the framing here is sensible, and a stop at cloudcovegoodsroom 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.
Clean writing easy to read and never tries too hard to impress that combination is harder to find than people think and after my time on bravofarms I am sure this site treats its readers well no flashy tricks just useful content done right which is honestly all I want online.
Now recognising that this site has earned a place in the small group of resources I treat as authoritative, and a stop at embermeadowmarketguild confirmed that placement, the difference between resources I trust and resources I just consume is real and this site has clearly moved into the trusted category through consistent quality over time.
Took the time to read every paragraph rather than skimming for the punchline, and a quick visit to caramelcovecommerceatelier earned the same careful attention from me, that is the highest signal I can give about content quality because my default mode is rapid scanning rather than deliberate reading on most pages.
Liked the way the post got out of its own way, and a stop at amberharborvendorlounge extended that invisible craft, the best writing you barely notice while reading because it is doing its work without drawing attention to itself and this site has clearly mastered that disappearing act across the pieces I have read.
Generally I find the content on similar topics frustrating in specific ways and this post avoided all of them, and a look at cottonbrookvendorfoundry continued that frustration free experience, content that sidesteps the standard failure modes of its genre is content with editorial awareness and this site has clearly studied what fails elsewhere consistently.
Took something from this I did not expect to find, and a stop at dazzquays added another unexpected useful piece, content that exceeds expectations rather than just meeting them is the kind that builds enthusiasm and earns repeat visits without any explicit ask from the writer or platform behind the work being read.
Picked this for my morning read because the topic seemed worth the time, and a look at woodharborcommercegallery confirmed the choice was right, my morning reading slot is precious and giving it to this site felt like a good investment rather than a waste which is a higher endorsement than I usually offer for content.
Useful reading material, the kind I can hand off to someone newer to the topic without worrying about confusing them, and a quick look at cottongrovegoodsgallery confirmed the same beginner friendly tone runs throughout the site which is great for sharing with people just starting their learning journey on this particular topic.
Just wanted to say this was useful and leave a small note of thanks, and a quick visit to suncovecraftcollective earned a similar nod from me, the small acknowledgements add up over time and represent the real economy of trust that good content runs on across the open and increasingly fragmented modern internet.
Honestly enjoyed reading this more than I expected to when I first clicked through, and a stop at mossharborartisanexchange kept that pleasant surprise going, sometimes you stumble onto a site that just clicks with how you like to read and this is one of those for me right now today which is great.
Probably the kind of site that should be more widely read than it appears to be, and a look at konvexa reinforced that quiet wish, the gap between a sites quality and its apparent reach is sometimes large and that gap exists for this site in a way that makes me want to mention it more.
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Now recognising that the post handled the topic with appropriate technical precision without becoming dry, and a stop at dawnbrookmarketfoundry continued that balance, technical precision and readability are often in tension and this site has clearly figured out how to maintain both at once which is one of the harder editorial achievements in the form.
Pleasant surprise, the post delivered more than the headline promised, and a stop at birchbrookvendorfoundry continued that pattern of under promising and over delivering, the rarest combination on the modern web where most content does the opposite by promising the world and delivering thin recycled summaries instead each time you click on something interesting.
Now feeling the post has earned a proper recommendation rather than a casual mention and a stop at gemcoast reinforced the recommendation strength the difference between mentioning and recommending is a small editorial distinction I observe in my own conversations and this site has earned the upgraded recommendation level from me confidently today.
Reading this triggered a small but real correction in something I had assumed, and a stop at createforwarddirection extended that corrective effect, content that updates my beliefs through evidence rather than rhetoric is content with intellectual integrity and this site has earned that label consistently across the pieces I have read so far today.
Thanks for the simple approach, too many sites bury the actual point under layers of unnecessary words, but here every line earns its place, and a look at cottonmeadowcraftcollective showed the same care for the reader which is something I will remember the next time I need answers on a topic.
Started taking notes about halfway through because the points were stacking up, and a look at marbleharbortradehall added enough material that my notes file grew further, content that demands note taking from a passive reader is content with substance and the writers here are clearly producing that kind of work consistently across topics.
Now planning a longer reading session for the archives, and a stop at nextgenbuyhub confirmed the archives are worth that longer commitment, sites with archives I want to read deliberately rather than just sample are rare and this one has clearly earned that level of interest based on the consistency of what I have already read.
Closed it feeling slightly more competent in the topic than I started, and a stop at embercovecommerceatelier reinforced that competence boost, real learning is rare in casual online reading but it does happen sometimes and this site managed to make it happen for me today which is genuinely worth pausing to acknowledge.
Felt the post had been written without looking over its shoulder, and a look at nightorchardtradeparlor continued that confident posture, content written for its own sake rather than against imagined critics has a different quality and this site reads as written from a place of confidence rather than defensive justification of every claim.
Skipped lunch to finish reading, which says something, and a stop at ivoryharborvendorroom kept me at my desk longer than planned, when content beats the lunch impulse the writer has done something genuinely impressive in an attention environment full of immediately satisfying alternatives competing for the same finite block of reader time.
A thoughtful read in a week that has been mostly noisy, and a look at cloudharbortradehall carried that thoughtful quality across more pages, finding pockets of considered writing in a week of distractions is one of the small wins of careful curation and this site is providing those pockets at a sustainable rate.
Found something new in here that I had not seen explained this way before and a quick stop at flarequills expanded the idea even further the kind of writing that nudges your thinking forward a bit without forcing the issue is exactly what I look for online today and rarely actually find anywhere.
Genuinely well crafted writing, the kind that makes the topic look easier than it actually is, and a look at floraharborvendorhall added even more depth, you can feel the experience behind every line which is something only writers who have been at this for a while can pull off with this level of grace.
Reading this in my last reading slot of the day was a good way to end, and a stop at garnetbrookvendorfoundry provided a satisfying close to the reading session, content that ends a day well rather than agitating it before sleep is the kind I value increasingly and this site fits that role for me consistently now.
Found something quietly useful here that I expect to return to, and a stop at cottonmeadowmarkethall added more of the same, content with quiet utility ages well in a way that flashy hot takes do not and I have learned to weight quiet utility much higher when deciding what to bookmark for later use.
My time on this site has now extended past what I had budgeted, and a stop at emberstonevendorlounge keeps extending it further, content that overstays its budget in my schedule is content that has earned the extra time and this site has been earning extra time across multiple visits to the point where my schedule needs adjustment.
Great work on keeping things readable, the post never drags or repeats itself which I really appreciate, and a stop at goodslinkstore 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.
Closed the tab with a small sense of finality rather than the usual rushed exit, and a stop at clovercrestmarketparlor produced the same considered closing, when reading ends with deliberate satisfaction rather than impatient skip you know the time was well spent and this site is producing those satisfying endings consistently across what I read.
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A piece that did not lean on the writer credentials or institutional backing, and a look at directionalclaritywins maintained the same focus on substance, content that earns trust through quality rather than through name dropping is the kind I find most persuasive and this site is clearly playing on the substance side of that distinction.
If you scroll past this site without looking carefully you will miss something, and a stop at etherfairs 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.
Now placing this in the same category as a few other sites I have come to trust, and a look at tealcovecraftcollective continued the placement decision, the small category of fully trusted sites is one I extend rarely and only after multiple positive reading sessions and this site has earned the category placement methodically over time.
Reading this with a fresh mind in the morning brought out details I might have missed in the afternoon, and a stop at skyharborcraftcollective earned the same fresh attention, content that rewards being read at full attention rather than at energy lows is content with real density and this site has that density consistently.
Closed and reopened the tab three times before finally finishing, and a stop at elmbrooktradingfoundry held my attention straight through, sometimes content fights for time against my own distraction and the times it wins say something positive about its quality and this post clearly won that fight today afternoon for me.
Now thinking the topic is more interesting than I had given it credit for, and a stop at crystalcovecommerceatelier continued that elevated interest, content that revives my curiosity about subjects I had set aside is doing genuine work in the structure of my interests and this site is providing that revivifying effect today actually.
Coming to this with low expectations and being pleasantly surprised by the substance, and a stop at ferncovecommerceatelier continued exceeding expectations, the recalibration of expectations upward across multiple positive readings is one of the actual rewards of careful browsing and this site is providing that recalibration at a steady rate apparently.
More substantial than most of what I find searching for this topic online, and a stop at creekharborcraftcollective kept that quality consistent, this is one of those sites where the writing actually rewards careful reading rather than punishing the patient reader with empty filler stretched out across long paragraphs that say very little.
Reading this prompted me to send the link to two different people for two different reasons, and a stop at quartzmeadowmarketgallery provided ammunition for a third share, content that suits multiple audiences without being generic enough to be useless to any of them is genuinely valuable and this site has that multi audience quality clearly.
Adding to the bookmarks now before I forget, that is how good this is, and a look at brightbrooktradingfoundry confirmed the rest of the site is worth saving too, this is one of those rare finds that justifies the time spent searching the web for once which is a relief in the current environment.
Reading this in the morning set a good tone for the day, and a quick visit to levqino 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.
Comfortable read, finished it without realising how much time had passed, and a look at coastharborvendorhall 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 prompted a small redirection in something I was working on, and a stop at meadowharborvendorhall extended that redirecting influence, content that affects my actual work rather than just my thinking has the highest practical impact and this site is providing that level of influence for me at a sustainable rate apparently.
Going to share this with a friend who has been asking the same questions for a while now, and a stop at garnetharbortradinghouse added a few more pages I will pass along too, this is the kind of generous information that earns a small thank you from me right now and again later this week.
Recommended without hesitation if you care about careful coverage of this topic, and a stop at stylishbuycorner reinforced the recommendation, the bar I set for unhesitating recommendations is fairly high and this site has cleared it through the cumulative weight of multiple consistently good pieces rather than through any single standout post which is meaningful.