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:
Going to share this with a friend who has been asking the same questions for a while now, and a stop at findyourcompetitiveedge 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.
Once I trust a site this much I tend to read everything they publish and that is the trajectory I am on with this one, and a stop at learnandoptimizegrowth confirmed the trajectory, the rare progression from interested reader to comprehensive reader is something only certain sites earn and this one is earning that progression rapidly.
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A satisfying piece in the way that good meals are satisfying rather than just filling, and a look at learnandprogressnow extended that satisfaction, the metaphor between content and meals is one I find useful and this site reads as a satisfying meal rather than the empty calories that most content provides for casual readers.
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Thanks for sharing this with the open internet rather than locking it behind a paywall like so many sites do now, and a stop at explorefuturegrowthlanes kept the same vibe going, generous helpful and clearly written by someone who actually wants people to learn from it rather than just charge them.
Polished and informative without feeling overproduced, that is the sweet spot, and a look at shopmint hit it again, you can tell when a site has been built with care versus thrown together for the sake of having something to put online and this is clearly the former approach taken by the team.
Refreshing tone compared to the dry corporate posts on similar topics, and a stop at findnewopportunitypaths carried that personality through nicely, you can tell when a real person is behind the writing versus a content team chasing metrics and this site definitely falls into the former category clearly across what I have seen.
Reading this in a quiet coffee shop matched the calm energy of the writing, and a stop at buildsmartplanning extended that environmental match, content that has its own ambient quality which can match or clash with surroundings is content with a personality and this site has the kind of personality that suits calm reading.
Felt a small spark of recognition when the post named something I had been struggling to articulate, and a look at exploreuntappeddirectionpaths produced more such moments, the rare service of giving readers language for fuzzy intuitions is one of the higher values that good writing can provide and this site offered several today instances.
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Really appreciate that the writer did not overstate the importance of the topic to make the post feel weightier, and a quick visit to unicorntempo maintained the same modest framing, content that is honest about its own scope rather than inflating itself is the kind I trust and return to repeatedly over time.
Worth saying that the quiet confidence of the writing is what landed first, and a look at explorefreshstrategicgrowth continued that quiet quality, confident writing without the loud display of confidence is a rare combination and this site has clearly developed both the knowledge and the editorial restraint to land that combination consistently.
Now saved this in a way that I will actually find again rather than the casual bookmark approach, and a stop at startbuildingstrategically earned the same careful saving, organising my reading bookmarks so that high quality sources rise to the top is something I should do more of and this site triggered that organisation today.
Really appreciate the lack of pop ups, modals, cookie banners stacking on top of each other, and a quick visit to finkglaze confirmed the same clean approach across the rest of the site, technical decisions about user experience are part of what makes content actually pleasant to engage with for sure.
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Glad to have another reliable bookmark for this topic, and a look at ivafix suggested several more pages I will be marking too, building a personal library of trustworthy resources is one of the actual rewards of careful browsing and this site is earning a place on my permanent shortlist for the topic.
A piece that read as if the writer was thinking carefully rather than just typing fluently and a look at findnewperspective continued that considered quality the difference between fluent typing and careful thinking shows up in writing and this site reads as the product of thought rather than just the product of language fluency apparently.
Started believing the writer knew the topic deeply by about the second paragraph, and a look at startmovingstrategically reinforced that confidence, the speed at which a writer establishes credibility through their writing is a useful quality signal and this writer establishes it quickly and quietly without resorting to credential dropping or self promotion.
A piece that handled the topic with appropriate weight without becoming portentous, and a look at findmomentumnextstage continued that calibrated seriousness, content that takes itself seriously without becoming pompous is something this site has clearly figured out and the balance shows up in every piece I have read across multiple sessions now.
Most of the time I bounce off similar pages within seconds and a stop at seostreet held me longer than I would have predicted the ability to convert a likely bouncing visitor into an engaged reader is a quality signal and this site has demonstrated that conversion ability across multiple visits where I expected to bounce.
Better than the average post on this subject by some distance, and a look at buildsmartforwarddirection reinforced that, you can tell within the first paragraph that the writer here actually cares about the topic rather than just covering it for the sake of having something to publish that week or that day.
Glad to find something on this topic that does not start with three paragraphs of throat clearing before getting to the point, and a stop at discovercreativepathsnow also dives right in, respect for the readers time shows up in small editorial choices like this and they add up to a real difference quickly.
Felt the writer was speaking my language without trying to imitate it, and a look at findyourwinningdirection continued that natural fit, when a writers default voice happens to match what you find easy to read the experience feels frictionless and that is something I notice and remember about specific sites going forward.
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Will be back, that is the simplest way to say it, and a quick visit to growfocusedprogressnow reinforced the decision, this site has earned a spot in my regular rotation alongside a few other reliable places I check when I want something genuinely informative without all the usual modern web noise getting in the way.
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Well done, the writing is professional without being stiff, and the topic is treated with care, and a look at explorefutureoptions reflected that approach, the kind of site I would point a colleague to if they asked for a reliable starting point on this topic in the future without any hesitation at all.
Beats most of the alternatives on the topic by a noticeable margin, and a look at growstepbystrategy did not change that at all, this is one of the better corners of the open internet for this kind of content and I am glad I clicked through rather than skipping past quickly like I usually do.
Recommend this to anyone who values clear thinking over flashy presentation, and a stop at learnandrefineapproach continued in the same understated way, this site has its priorities in the right place which makes it worth supporting through repeat visits and recommendations rather than just one passing read today before moving on quickly elsewhere.
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Appreciate the practical examples, they made the abstract points easier to grasp, and a stop at learnandprogressintentionally added more of the same, this site clearly understands that real examples beat empty theory every single time which is the mark of a writer who knows their audience well and respects their time.
Just want to acknowledge that the writing here is doing something right, and a quick visit to buildsustainabledirection 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.
Now I want to find more sites like this but I suspect they are rare, and a look at seoharbor 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.
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Decided this was the kind of site I would defend in a discussion about good blog content, and a stop at growwithstrategyintentnow reinforced that, very few sites earn active defence rather than passive consumption and this one has clearly crossed that threshold for me without needing any explicit pitch from the writers themselves either.
Now recognising the post as a rare example of careful writing on a topic that mostly receives careless treatment, and a stop at buildpositiveoutcomes extended that contrast with the average elsewhere, content that highlights how much the average is settling for low quality is content that has both internal merit and external value as a benchmark.
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My usual pattern is to skim and bounce but this site has reset that pattern temporarily, and a stop at discovernewanglestoday maintained the slower reading mode, content that changes how I read is content with structural influence and this site has clearly nudged my reading behaviour toward something better at least for the duration of these visits.
Thank you for keeping the writing honest and the points easy to verify against your own experience, and a stop at growfocusedprogress reflected the same approach, no exaggeration just steady useful content that I can take with me into my own work without second guessing every sentence I happen to read here.
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Closed the tab with a small sense of finality rather than the usual rushed exit and a stop at growresultsdriven 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.
Such writing is increasingly rare and worth supporting through attention, and a stop at createprogressfocusedstrategy 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.
Picked up a couple of new ideas here that I can actually try out, and after my visit to startbuildingfuture 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.
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