200 Top SEO Ranking Factors September 2026

TOP SEO Factors for 2026-09 previous

Top SEO Factor data is updated daily for latest "month to date" measurements.

	Name	Correlation	#1 Max	Page 1 Avg	Usage %	Searches %
1	Number of Referring Domains Authority	-0.32	619	65	30 %	93 %
2	Number of Backlinks Authority	-0.31	134088	3437	30 %	93 %
3	Number of Unique LSI Words Used Diversity	-0.31	908	306	69 %	66 %
4	Number of Images Size	-0.31	67	26	53 %	84 %
5	Search Result Domain is .com, .net, or .org Other	-0.3	1	1	7 %	87 %
6	Number of Do Follow Backlinks Authority	-0.3	133206	3318	28 %	93 %
7	Search Result Domain is .com Other	-0.3	1	1	7 %	86 %
8	Load Time Milliseconds Performance	-0.29	20510	2747	66 %	90 %
9	Number of No Follow Backlinks Authority	-0.29	1084	120	21 %	92 %
10	Number of Images with ALT Text Size	-0.28	53	18	49 %	88 %
11	Has Meta Charset Technology	-0.27	1	1	54 %	85 %
12	Word Count Size	-0.27	8520	1485	68 %	92 %
13	Unabridged Word Count Size	-0.27	10269	1810	68 %	92 %
14	Clean Text Kilobytes Size	-0.27	61	12	53 %	93 %
15	Number of P Tags Size	-0.27	98	37	52 %	86 %
16	Number of Heading Tags Size	-0.26	42	19	55 %	87 %
17	Number of H1 Tags Size	-0.26	4	1	51 %	86 %
18	Number of HTML Tags Size	-0.26	2216	917	67 %	88 %
19	Number of Top 200 Shared Factors Used Diversity	-0.26	50	34	79 %	82 %
20	Search Result Number of Dirs in Path Other	-0.25	3	2	61 %	87 %
21	Number of H2 Tags Size	-0.25	11	7	49 %	85 %
22	Number of Top 50 Shared Factors Used Diversity	-0.25	16	11	78 %	80 %
23	Number of Top 100 Shared Factors Used Diversity	-0.25	38	25	79 %	81 %
24	Number of Links Authority	-0.25	336	114	62 %	89 %
25	Number of DoFollow Links Authority	-0.25	333	111	62 %	91 %
26	Number of HTTPS Links Authority	-0.25	335	113	62 %	90 %
27	Number of Internal Links Authority	-0.25	312	97	60 %	87 %
28	Has JSON-LD Schema Markup Relevancy	-0.25	1	1	36 %	76 %
29	Number of Factors Used Diversity	-0.25	396	174	80 %	73 %
30	Number of HTML Comments Size	-0.24	477	55	50 %	86 %
31	Number of Images without ALT Text Size	-0.24	21	8	37 %	87 %
32	Average Words Per Sentence Size	-0.24	242	26	58 %	87 %
33	Number of Unique Variations Used Diversity	-0.23	28	12	61 %	61 %
34	Variations in P Tags Relevancy	-0.23	1658	51	45 %	84 %
35	Variations in H1-H6 Tags Relevancy	-0.23	173	10	45 %	77 %
36	Number of Includes Technology	-0.23	54	23	60 %	81 %
37	Variations in H1, H2, and H3 Tags Relevancy	-0.23	118	9	44 %	76 %
38	Variations in ALT Attributes Relevancy	-0.22	106	7	31 %	76 %
39	Has Form Technology	-0.22	1	1	31 %	78 %
40	Variations in Div Tags Relevancy	-0.22	22029	290	53 %	82 %
41	Number of H3 Tags Size	-0.22	32	8	42 %	87 %
42	Search Result Host Length Size	-0.22	22	16	65 %	76 %
43	Variations in A Tags Relevancy	-0.22	2514	44	45 %	76 %
44	Page Size Kilobytes Size	-0.22	788	295	65 %	59 %
45	Variations in H1 and H2 Tags Relevancy	-0.22	71	5	43 %	76 %
46	Number of Forms Technology	-0.22	6	2	34 %	83 %
47	Search Result Uses HTTPS Other	-0.22	1	1	63 %	71 %
48	Number of Facebook Pages Authority	-0.22	5	2	38 %	85 %
49	Search Result Domain Length Size	-0.22	22	16	65 %	77 %
50	Variations in LI Tags Relevancy	-0.22	734	30	45 %	85 %
51	Leading Variations in H1-H6 Tags Relevancy	-0.21	5	2	35 %	73 %
52	Number of External Links Authority	-0.21	38	16	58 %	92 %
53	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.21	4	2	33 %	73 %
54	Variations in Search Result Document File Name Relevancy	-0.21	7	1	35 %	81 %
55	Uses JSON-LD name Other	-0.21	1	1	39 %	75 %
56	Flesch Kincaid Reading Grade Level Other	-0.21	6	1	76 %	90 %
57	Number of DoFollow External Links Authority	-0.21	36	14	57 %	93 %
58	Number of CSS Includes Technology	-0.21	21	8	55 %	67 %
59	LSI Words in Sentences Relevancy	-0.21	3764	603	44 %	90 %
60	Variations in Span Tags Relevancy	-0.21	364	13	35 %	81 %
61	Variations in Body Tags Relevancy	-0.2	97091	1133	62 %	75 %
62	Percentage of DoFollow Internal Links Authority	-0.2	87	61	58 %	77 %
63	Variations in Search Result URL Path Relevancy	-0.2	6	1	35 %	80 %
64	Variations in H1 Tags Relevancy	-0.2	11	1	40 %	78 %
65	Term Frequency Relevancy	-0.2	6	3	59 %	71 %
66	Has Meta Robots Other	-0.2	1	1	20 %	76 %
67	Number Of JSON-LD Types Relevancy	-0.2	50	14	40 %	82 %
68	Entities in Sentences Relevancy	-0.2	600	131	47 %	92 %
69	Number of Instagram Pages Authority	-0.2	12	3	30 %	87 %
70	Variations in HTML Tags Relevancy	-0.2	97091	1094	60 %	78 %
71	Inline JavaScript Kilobytes Size	-0.2	353	116	61 %	54 %
72	Variations in H2 Tags Relevancy	-0.2	61	4	36 %	75 %
73	Number of Social Pages Authority	-0.2	14	5	45 %	87 %
74	Entities in the HTML Tag Relevancy	-0.2	687	136	51 %	91 %
75	Number of Absolute URLs Authority	-0.2	523	228	64 %	66 %
76	Number of Sentences Size	-0.2	427	125	65 %	85 %
77	Search Result Summary Length Size	-0.19	154	146	79 %	70 %
78	Variation Count in Top 30KB Relevancy	-0.19	6580	77	49 %	82 %
79	Number of Facebook Accounts Authority	-0.19	3	1	17 %	81 %
80	Percentage of DoFollow External Links Authority	-0.19	30	14	56 %	71 %
81	Has Meta Viewport Technology	-0.19	1	1	62 %	76 %
82	Number of Distinct Entities Used Diversity	-0.19	60	22	53 %	90 %
83	Number of Social Accounts Authority	-0.19	5	2	27 %	87 %
84	Number of Questions In Headings Size	-0.19	5	2	27 %	82 %
85	Variations in A Tag HREF Attributes Relevancy	-0.19	1082	45	40 %	79 %
86	Number of LinkedIn Pages Authority	-0.19	3	1	21 %	83 %
87	Number of JavaScript Includes Technology	-0.19	40	16	62 %	84 %
88	Percentage of DoFollow Links Authority	-0.19	99	78	62 %	79 %
89	Uses JSON-LD url Other	-0.19	1	1	35 %	77 %
90	Variations in Sentences Relevancy	-0.19	1695	62	54 %	79 %
91	Variations in Search Result URL Relevancy	-0.19	13	2	42 %	72 %
92	Has US Phone Number Trust	-0.19	1	1	26 %	81 %
93	Number of US Phone Numbers Trust	-0.18	108	8	28 %	86 %
94	Variations in H3 Tags Relevancy	-0.18	14	4	29 %	74 %
95	Has Privacy Policy Trust	-0.18	1	1	37 %	76 %
96	Variations in Distinct A Tag HREF Attributes Relevancy	-0.18	789	28	41 %	82 %
97	Has Contact Page Trust	-0.18	1	1	35 %	61 %
98	Uses JSON-LD mainEntity Other	-0.18	1	1	1 %	20 %
99	Has Apple Touch Icon Technology	-0.18	1	1	36 %	74 %
100	Inline CSS Kilobytes Size	-0.18	154	56	52 %	83 %
101	Number Of Claimed Brands Other	-0.18	7	2	18 %	76 %
102	Variations in Meta Description Relevancy	-0.18	44	2	43 %	62 %
103	Variations in Main Tags Relevancy	-0.18	9831	140	26 %	85 %
104	Entities in H1 Tags	-0.18	5	2	36 %	87 %
105	Variations in Absolute URLs Relevancy	-0.18	6009	107	44 %	78 %
106	Headings Has Question Other	-0.18	1	1	28 %	82 %
107	Uses JSON-LD description Other	-0.18	1	1	31 %	70 %
108	Is Article Page Other	-0.18	1	1	31 %	63 %
109	Uses Schema organization Other	-0.18	1	1	24 %	75 %
110	Variations in Nav Tags Relevancy	-0.18	3481	56	33 %	75 %
111	Number of Prices Size	-0.17	484	108	52 %	76 %
112	Number of Questions Size	-0.17	36	11	52 %	62 %
113	Has Schema Markup Relevancy	-0.17	1	1	47 %	54 %
114	Variations in OpenGraph Title Relevancy	-0.17	3	2	40 %	50 %
115	Variations in Section Tags Relevancy	-0.17	899	29	28 %	86 %
116	Exact Matches in H1-H6 Tags Relevancy	-0.17	6	1	17 %	69 %
117	Title Length Size	-0.17	129	50	64 %	61 %
118	Title Word Count Size	-0.17	17	8	65 %	65 %
119	Exact Matches in the HTML Tag Relevancy	-0.17	324	12	24 %	74 %
120	Has Terms of Service Trust	-0.17	1	1	27 %	71 %
121	Number of Nofollow Links Authority	-0.17	20	3	16 %	86 %
122	Leading Variations in H1 Tags Relevancy	-0.17	1	1	21 %	72 %
123	Number of NoFollow External Links Authority	-0.17	7	2	12 %	84 %
124	Uses JSON-LD Organization Other	-0.17	1	1	24 %	75 %
125	Variations in the Title Tag Relevancy	-0.17	4	2	47 %	64 %
126	Has Entities in H1 Tags Relevancy	-0.17	1	1	36 %	85 %
127	Number of H4 Tags Size	-0.17	12	3	23 %	82 %
128	Is Home Page Other	-0.17	1	1	9 %	55 %
129	Uses Schema name Other	-0.17	1	1	46 %	53 %
130	Entities in H2 Tags	-0.17	20	6	35 %	90 %
131	Variations in Footer Tags Relevancy	-0.17	4986	56	30 %	72 %
132	Variations in Script Tags Relevancy	-0.17	29554	383	51 %	68 %
133	Uses Schema datemodified Other	-0.17	1	1	22 %	65 %
134	Uses JSON-LD datePublished Other	-0.17	1	1	24 %	73 %
135	Number of Twitter Accounts Authority	-0.17	2	1	12 %	86 %
136	Number of Questions In H3 Tags Size	-0.17	4	1	14 %	76 %
137	Variations in the Canonical URL Relevancy	-0.17	39	2	35 %	76 %
138	Exact Matches in Top 30KB Relevancy	-0.17	6	2	16 %	67 %
139	Uses Schema url Other	-0.17	1	1	43 %	50 %
140	Uses JSON-LD BreadcrumbList Other	-0.17	1	1	25 %	66 %
141	Uses JSON-LD ListItem Other	-0.16	1	1	26 %	66 %
142	Uses JSON-LD ImageObject Other	-0.16	1	1	23 %	69 %
143	Variations in First 100 Words Relevancy	-0.16	187	8	45 %	71 %
144	Variations in OpenGraph Description Relevancy	-0.16	4	2	40 %	57 %
145	LSI Words in H1 Tags Relevancy	-0.16	9	3	36 %	87 %
146	Percentage of NoFollow Links Authority	-0.16	6	2	14 %	82 %
147	Uses Schema searchaction Other	-0.16	1	1	15 %	60 %
148	Entities in H3 Tags	-0.16	39	7	29 %	90 %
149	Number of Email Addresses Trust	-0.16	12	3	33 %	72 %
150	Uses Schema webpage Other	-0.16	1	1	24 %	62 %
151	Uses JSON-LD dateModified Other	-0.16	1	1	22 %	66 %
152	Uses JSON-LD WebPage Other	-0.16	1	1	23 %	61 %
153	LSI Words in H2 Tags Relevancy	-0.16	48	14	33 %	84 %
154	Leading Variations in H2 Tags Relevancy	-0.16	3	1	20 %	71 %
155	Has Entities in H2 Tags Relevancy	-0.16	1	1	35 %	86 %
156	Has Email Trust	-0.16	1	1	32 %	70 %
157	Variation Density in Top 30KB Relevancy	-0.16	298	6	50 %	63 %
158	Uses JSON-LD SearchAction Other	-0.16	1	1	15 %	62 %
159	Uses Schema headline Other	-0.16	1	1	14 %	68 %
160	Entities in Title Tag Relevancy	-0.16	5	2	47 %	90 %
161	Number of Meta Generator Tags Technology	-0.16	2	1	23 %	61 %
162	Search Result URL Length Size	-0.16	110	70	79 %	32 %
163	Percentage of NoFollow External Links Authority	-0.16	4	1	10 %	82 %
164	Uses Schema website Other	-0.16	1	1	23 %	61 %
165	Has OpenGraph Image Relevancy	-0.16	1	1	41 %	50 %
166	Has OpenGraph Type Relevancy	-0.16	1	1	46 %	51 %
167	Exact Matches in Title Tag Relevancy	-0.16	1	1	14 %	66 %
168	Variations in Strong Tags Relevancy	-0.16	36	3	21 %	81 %
169	Variations in Search Result Link Text Relevancy	-0.16	3	2	69 %	64 %
170	Has Entities in H3 Tags Relevancy	-0.16	1	1	29 %	85 %
171	Uses Microdata ratingCount Other	-0.15	1	1	1 %	18 %
172	Word Count in Meta Description Size	-0.15	26	18	53 %	60 %
173	Has HREF Lang Technology	-0.15	1	1	8 %	74 %
174	Has Meta Description Relevancy	-0.15	1	1	50 %	54 %
175	Clean Keyword Density in the HTML Tag Relevancy	-0.15	204	7	50 %	55 %
176	LSI Words in H3 Tags Relevancy	-0.15	72	15	29 %	87 %
177	Is Store Page Other	-0.15	1	1	29 %	75 %
178	Uses Schema image Other	-0.15	1	1	14 %	75 %
179	Is OpenGraph Type Article Technology	-0.15	1	1	22 %	59 %
180	Leading Variations in Title Tag Relevancy	-0.15	1	1	25 %	69 %
181	Uses Microdata AggregateRating Other	-0.15	1	1	1 %	22 %
182	Uses JSON-LD Person Other	-0.15	1	1	14 %	74 %
183	Number of HREF Lang Tags Size	-0.15	12	2	7 %	80 %
184	Has FavIcon Technology	-0.15	1	1	60 %	61 %
185	Uses JSON-LD headline Other	-0.15	1	1	13 %	72 %
186	Meta Description Length Size	-0.15	166	109	54 %	59 %
187	Variations in I Tags Relevancy	-0.15	109	4	14 %	77 %
188	Has RSS Link Authority	-0.15	1	1	19 %	59 %
189	Uses JSON-LD WebSite Other	-0.15	1	1	21 %	66 %
190	Exact Matches in Sentences Relevancy	-0.15	209	5	19 %	72 %
191	TF/IDF Relevancy	-0.15	1	1	43 %	74 %
192	Has Meta Twitter Description Authority	-0.15	1	1	23 %	40 %
193	Variations in Search Result Display URL Relevancy	-0.15	3	2	69 %	66 %
194	Uses Schema urltemplate Other	-0.15	1	1	13 %	55 %
195	Variations Making Whole Span Tags Relevancy	-0.15	5	1	14 %	75 %
196	Variations making whole H1, H2, and H3 Tags Relevancy	-0.15	2	1	10 %	69 %
197	Is Category Page Other	-0.15	1	1	11 %	69 %
198	Uses Schema entrypoint Other	-0.15	1	1	13 %	55 %
199	Uses Schema propertyvaluespecification Other	-0.15	1	1	11 %	53 %
200	Uses Schema valuename Other	-0.15	1	1	11 %	53 %

Measures 154170 SEO Factors

152448 Built-In SEO Factors

143223 On-page SEO Factors

9225 Google Maps SEO Factors for Local SEO

1722 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

1575 Technology Stack SEO Factors

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TOP SEO Factors for 2026-09 previous