Since my previous post on @font-face and gzipping, Paul Irish has asked (and so has @KLTF) what about WOFF?
WOFF is a newer format with built in compression and ability to store meta data.
So I took this stnf2woff utility and converted all the TTF and OTF files from my previous tests to WOFF. Below are the results.
Basically, the tests confirm that WOFF is already compressed, it doesn't need to be gzipped by the server and woff file sizes is comparable to the compressed TTF or OTF.
The tables show the original font-file size and the percentage shaved off after gzipping, converting to WOFF and gzipping the WOFF.
TTF to WOFF
| font | original, bytes | gzip saves, % | woff saves, % | woff gzipped saves, % |
|---|---|---|---|---|
| AllerDisplay.ttf | 95,616 | 50.04% | 51.26% | 51.30% |
| Aller_Bd.ttf | 128,368 | 53.35% | 54.34% | 54.62% |
| Aller_BdIt.ttf | 123,556 | 52.30% | 53.46% | 53.49% |
| Aller_It.ttf | 120,876 | 51.64% | 52.46% | 52.55% |
| Aller_Lt.ttf | 132,780 | 54.24% | 55.45% | 55.75% |
| Aller_LtIt.ttf | 122,296 | 53.11% | 54.17% | 54.26% |
| Aller_Rg.ttf | 134,436 | 52.86% | 53.57% | 53.87% |
| FFF_Tusj.ttf | 1,543,648 | 34.69% | 34.69% | 34.68% |
| MarketingScript.ttf | 55,160 | 54.63% | 54.86% | 54.86% |
| Sansation_Bold.ttf | 19,644 | 46.72% | 46.59% | 46.76% |
| Sansation_Light.ttf | 19,568 | 46.72% | 46.52% | 46.68% |
| Sansation_Regular.ttf | 19,480 | 47.78% | 47.70% | 47.86% |
| Ubuntu-Title.ttf | 15,108 | 50.54% | 49.19% | 49.32% |
| UglyQua-Italic.ttf | 184,300 | 43.64% | 44.16% | 44.41% |
| UglyQua.ttf | 120,424 | 50.59% | 50.95% | 51.58% |
| Vera-Bold-Italic.ttf | 63,208 | 39.25% | 41.39% | 42.30% |
| Vera-Bold.ttf | 58,716 | 37.59% | 39.74% | 40.53% |
| Vera-Italic.ttf | 63,684 | 39.34% | 41.03% | 41.45% |
| Vera.ttf | 65,932 | 39.07% | 41.70% | 43.27% |
| YanoneTagesschrift.ttf | 105,016 | 43.12% | 44.54% | 45.27% |
| daniel.ttf | 51,984 | 32.19% | 32.03% | 32.01% |
| danielbd.ttf | 63,688 | 36.09% | 36.05% | 36.03% |
| danielbk.ttf | 88,760 | 36.12% | 36.14% | 36.12% |
| journal.ttf | 130,956 | 41.58% | 42.14% | 42.12% |
| Average: | 41.48% | 41.97% | 42.13% | |
OTF to WOFF
| font | original, bytes | gzip saves, % | woff saves, % | woff gzipped saves, % |
|---|---|---|---|---|
| Diavlo_BLACK_II_37.otf | 33,964 | 24.99% | 25.05% | 24.98% |
| Diavlo_LIGHT_II_37.otf | 33,404 | 24.69% | 24.81% | 24.78% |
| Fertigo_PRO.otf | 52,636 | 32.56% | 32.97% | 32.90% |
| Fontin-Bold.otf | 30,460 | 46.54% | 46.26% | 46.45% |
| Fontin-Italic.otf | 30,636 | 46.31% | 45.89% | 46.05% |
| Fontin-Regular.otf | 30,396 | 47.79% | 47.41% | 47.61% |
| Fontin-SmallCaps.otf | 29,308 | 47.39% | 46.96% | 47.14% |
| Fontin_Sans_B_45b.otf | 24,984 | 29.65% | 30.72% | 32.11% |
| Fontin_Sans_I_45b.otf | 24,772 | 28.43% | 29.45% | 30.75% |
| Fontin_Sans_R_45b.otf | 25,564 | 29.52% | 30.43% | 31.87% |
| Fontin_Sans_SC_45b.otf | 27,384 | 33.54% | 34.68% | 36.04% |
| GraublauWeb.otf | 41,464 | 23.96% | 24.12% | 24.09% |
| GraublauWebBold.otf | 44,040 | 27.34% | 27.40% | 27.34% |
| Tallys_15.otf | 19,996 | 17.96% | 17.32% | 17.23% |
| YanoneKaffeesatz-Bold.otf | 55,568 | 60.58% | 60.14% | 60.29% |
| YanoneKaffeesatz-Light.otf | 58,328 | 57.73% | 57.70% | 58.08% |
| YanoneKaffeesatz-Regular.otf | 58,528 | 57.83% | 57.79% | 58.18% |
| YanoneKaffeesatz-Thin.otf | 58,292 | 58.27% | 58.25% | 58.66% |
| pykes_peak_zero.otf | 122,832 | 73.74% | 73.21% | 73.32% |
| vollkorn.otf | 30,065 | 16.27% | 16.54% | 16.47% |
| Average: | 45.40% | 45.40% | 45.68% | |
